./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab8f012-2ddc-4e28-a308-76916cd3f811/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab8f012-2ddc-4e28-a308-76916cd3f811/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab8f012-2ddc-4e28-a308-76916cd3f811/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab8f012-2ddc-4e28-a308-76916cd3f811/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab8f012-2ddc-4e28-a308-76916cd3f811/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab8f012-2ddc-4e28-a308-76916cd3f811/bin/utaipan-EQgc7hIp5V --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 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:33:01,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:33:01,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:33:01,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:33:01,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:33:01,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:33:01,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:33:01,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:33:01,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:33:01,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:33:01,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:33:01,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:33:01,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:33:01,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:33:01,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:33:01,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:33:01,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:33:01,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:33:01,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:33:01,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:33:01,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:33:01,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:33:01,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:33:01,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:33:01,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:33:01,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:33:01,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:33:01,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:33:01,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:33:01,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:33:01,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:33:01,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:33:01,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:33:01,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:33:01,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:33:01,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:33:01,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:33:01,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:33:01,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:33:01,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:33:01,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:33:01,309 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab8f012-2ddc-4e28-a308-76916cd3f811/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:33:01,350 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:33:01,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:33:01,351 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:33:01,351 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:33:01,351 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:33:01,352 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:33:01,352 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:33:01,352 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:33:01,352 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:33:01,352 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:33:01,353 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:33:01,353 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:33:01,353 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:33:01,353 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:33:01,353 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:33:01,354 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:33:01,354 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:33:01,354 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:33:01,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:33:01,355 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:33:01,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:33:01,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:33:01,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:33:01,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:33:01,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:33:01,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:33:01,356 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:33:01,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:33:01,357 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:33:01,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:33:01,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:33:01,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:33:01,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:33:01,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:33:01,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:33:01,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:33:01,358 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:33:01,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:33:01,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:33:01,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:33:01,359 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:33:01,359 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_3ab8f012-2ddc-4e28-a308-76916cd3f811/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab8f012-2ddc-4e28-a308-76916cd3f811/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 [2021-11-23 03:33:01,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:33:01,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:33:01,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:33:01,683 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:33:01,683 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:33:01,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab8f012-2ddc-4e28-a308-76916cd3f811/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2021-11-23 03:33:01,773 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab8f012-2ddc-4e28-a308-76916cd3f811/bin/utaipan-EQgc7hIp5V/data/1c506bc00/b068b28d494849a5acafb5f4942f55dd/FLAG51d26d856 [2021-11-23 03:33:02,330 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:33:02,331 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab8f012-2ddc-4e28-a308-76916cd3f811/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2021-11-23 03:33:02,347 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab8f012-2ddc-4e28-a308-76916cd3f811/bin/utaipan-EQgc7hIp5V/data/1c506bc00/b068b28d494849a5acafb5f4942f55dd/FLAG51d26d856 [2021-11-23 03:33:02,747 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab8f012-2ddc-4e28-a308-76916cd3f811/bin/utaipan-EQgc7hIp5V/data/1c506bc00/b068b28d494849a5acafb5f4942f55dd [2021-11-23 03:33:02,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:33:02,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:33:02,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:33:02,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:33:02,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:33:02,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:33:02" (1/1) ... [2021-11-23 03:33:02,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@416af3dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:02, skipping insertion in model container [2021-11-23 03:33:02,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:33:02" (1/1) ... [2021-11-23 03:33:02,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:33:02,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:33:03,009 WARN L230 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_3ab8f012-2ddc-4e28-a308-76916cd3f811/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2021-11-23 03:33:03,142 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:33:03,150 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:33:03,162 WARN L230 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_3ab8f012-2ddc-4e28-a308-76916cd3f811/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2021-11-23 03:33:03,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:33:03,257 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:33:03,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:03 WrapperNode [2021-11-23 03:33:03,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:33:03,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:33:03,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:33:03,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:33:03,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:03" (1/1) ... [2021-11-23 03:33:03,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:03" (1/1) ... [2021-11-23 03:33:03,320 INFO L137 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2021-11-23 03:33:03,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:33:03,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:33:03,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:33:03,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:33:03,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:03" (1/1) ... [2021-11-23 03:33:03,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:03" (1/1) ... [2021-11-23 03:33:03,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:03" (1/1) ... [2021-11-23 03:33:03,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:03" (1/1) ... [2021-11-23 03:33:03,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:03" (1/1) ... [2021-11-23 03:33:03,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:03" (1/1) ... [2021-11-23 03:33:03,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:03" (1/1) ... [2021-11-23 03:33:03,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:33:03,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:33:03,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:33:03,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:33:03,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:03" (1/1) ... [2021-11-23 03:33:03,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:33:03,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab8f012-2ddc-4e28-a308-76916cd3f811/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:33:03,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab8f012-2ddc-4e28-a308-76916cd3f811/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:33:03,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab8f012-2ddc-4e28-a308-76916cd3f811/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:33:03,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:33:03,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:33:03,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:33:03,455 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-23 03:33:03,455 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-23 03:33:03,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:33:03,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:33:03,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:33:03,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:33:03,457 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 03:33:03,591 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:33:03,592 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:33:03,730 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:33:03,743 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:33:03,743 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 03:33:03,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:33:03 BoogieIcfgContainer [2021-11-23 03:33:03,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:33:03,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:33:03,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:33:03,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:33:03,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:33:02" (1/3) ... [2021-11-23 03:33:03,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1faec880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:33:03, skipping insertion in model container [2021-11-23 03:33:03,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:33:03" (2/3) ... [2021-11-23 03:33:03,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1faec880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:33:03, skipping insertion in model container [2021-11-23 03:33:03,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:33:03" (3/3) ... [2021-11-23 03:33:03,753 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2021-11-23 03:33:03,759 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 03:33:03,759 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:33:03,759 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:33:03,759 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 03:33:03,783 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,783 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,783 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,783 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,784 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,784 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,784 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,784 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,784 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,785 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,785 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,785 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,785 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,786 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,786 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,786 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,786 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,786 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,787 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,787 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,787 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,787 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,788 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,788 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,788 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,788 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,788 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,789 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,789 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,789 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,790 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,790 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,790 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,790 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,797 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,801 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,801 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,801 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,802 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,802 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,802 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,802 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:33:03,806 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-23 03:33:03,866 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:33:03,877 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 [2021-11-23 03:33:03,877 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-23 03:33:03,903 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-23 03:33:03,920 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 43 transitions, 91 flow [2021-11-23 03:33:03,924 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 43 transitions, 91 flow [2021-11-23 03:33:03,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 91 flow [2021-11-23 03:33:03,972 INFO L129 PetriNetUnfolder]: 1/42 cut-off events. [2021-11-23 03:33:03,973 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-23 03:33:03,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 42 events. 1/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2021-11-23 03:33:03,979 INFO L116 LiptonReduction]: Number of co-enabled transitions 256 [2021-11-23 03:33:05,371 INFO L131 LiptonReduction]: Checked pairs total: 179 [2021-11-23 03:33:05,371 INFO L133 LiptonReduction]: Total number of compositions: 44 [2021-11-23 03:33:05,384 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 10 places, 6 transitions, 17 flow [2021-11-23 03:33:05,392 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2021-11-23 03:33:05,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2021-11-23 03:33:05,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 03:33:05,398 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:33:05,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-23 03:33:05,400 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:33:05,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:33:05,405 INFO L85 PathProgramCache]: Analyzing trace with hash 179360, now seen corresponding path program 1 times [2021-11-23 03:33:05,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:33:05,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466252553] [2021-11-23 03:33:05,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:33:05,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:33:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:33:05,554 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 03:33:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:33:05,621 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 03:33:05,624 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 03:33:05,625 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-23 03:33:05,627 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-11-23 03:33:05,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-23 03:33:05,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:33:05,634 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-23 03:33:05,642 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-23 03:33:05,642 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:33:05,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:33:05 BasicIcfg [2021-11-23 03:33:05,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:33:05,663 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:33:05,663 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:33:05,663 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:33:05,664 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:33:03" (3/4) ... [2021-11-23 03:33:05,665 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 03:33:05,693 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab8f012-2ddc-4e28-a308-76916cd3f811/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 03:33:05,694 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:33:05,695 INFO L158 Benchmark]: Toolchain (without parser) took 2942.27ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 43.4MB in the beginning and 45.9MB in the end (delta: -2.5MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2021-11-23 03:33:05,695 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 81.8MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:33:05,696 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.42ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 43.2MB in the beginning and 66.3MB in the end (delta: -23.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 03:33:05,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.26ms. Allocated memory is still 98.6MB. Free memory was 66.3MB in the beginning and 64.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:33:05,697 INFO L158 Benchmark]: Boogie Preprocessor took 46.49ms. Allocated memory is still 98.6MB. Free memory was 64.6MB in the beginning and 63.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:33:05,698 INFO L158 Benchmark]: RCFGBuilder took 376.05ms. Allocated memory is still 98.6MB. Free memory was 63.3MB in the beginning and 53.4MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 03:33:05,698 INFO L158 Benchmark]: TraceAbstraction took 1915.87ms. Allocated memory is still 98.6MB. Free memory was 52.9MB in the beginning and 48.1MB in the end (delta: 4.8MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2021-11-23 03:33:05,699 INFO L158 Benchmark]: Witness Printer took 30.62ms. Allocated memory is still 98.6MB. Free memory was 48.1MB in the beginning and 45.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:33:05,702 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 81.8MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.42ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 43.2MB in the beginning and 66.3MB in the end (delta: -23.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.26ms. Allocated memory is still 98.6MB. Free memory was 66.3MB in the beginning and 64.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.49ms. Allocated memory is still 98.6MB. Free memory was 64.6MB in the beginning and 63.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 376.05ms. Allocated memory is still 98.6MB. Free memory was 63.3MB in the beginning and 53.4MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1915.87ms. Allocated memory is still 98.6MB. Free memory was 52.9MB in the beginning and 48.1MB in the end (delta: 4.8MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Witness Printer took 30.62ms. Allocated memory is still 98.6MB. Free memory was 48.1MB in the beginning and 45.9MB in the end (delta: 2.2MB). 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: 1.4s, 46 PlacesBefore, 10 PlacesAfterwards, 43 TransitionsBefore, 6 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 44 TotalNumberOfCompositions, 179 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 179, positive: 179, positive conditional: 0, positive unconditional: 179, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 163, positive: 163, positive conditional: 0, positive unconditional: 163, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 163, positive: 163, positive conditional: 0, positive unconditional: 163, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 179, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 163, unknown conditional: 0, unknown unconditional: 163] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative 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: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 690]: 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, 60 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-23 03:33:05,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab8f012-2ddc-4e28-a308-76916cd3f811/bin/utaipan-EQgc7hIp5V/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