./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/bin/utaipan-SDwSMHVbGG/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_06fe9627-c00a-4f6a-b878-da1e259c4310/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/bin/utaipan-SDwSMHVbGG --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 9374f67b40c977d0ce6f0001078a5fb14357c7c58f7028bef94e95dce1313180 ....................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:29:07,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:29:07,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:29:07,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:29:07,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:29:07,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:29:07,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:29:07,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:29:07,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:29:07,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:29:07,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:29:07,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:29:07,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:29:07,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:29:07,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:29:07,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:29:07,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:29:07,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:29:07,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:29:07,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:29:07,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:29:07,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:29:07,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:29:07,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:29:07,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:29:07,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:29:07,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:29:07,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:29:07,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:29:07,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:29:07,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:29:07,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:29:07,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:29:07,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:29:07,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:29:07,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:29:07,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:29:07,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:29:07,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:29:07,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:29:07,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:29:07,544 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:29:07,570 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:29:07,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:29:07,572 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:29:07,572 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:29:07,572 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:29:07,572 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:29:07,572 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:29:07,573 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:29:07,573 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:29:07,573 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:29:07,573 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:29:07,574 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:29:07,574 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:29:07,574 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:29:07,574 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:29:07,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:29:07,575 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:29:07,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:29:07,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:29:07,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:29:07,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:29:07,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:29:07,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:29:07,577 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:29:07,577 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:29:07,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:29:07,577 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:29:07,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:29:07,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:29:07,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:29:07,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:29:07,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:29:07,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:29:07,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:29:07,579 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:29:07,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:29:07,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:29:07,580 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:29:07,580 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:29:07,580 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_06fe9627-c00a-4f6a-b878-da1e259c4310/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9374f67b40c977d0ce6f0001078a5fb14357c7c58f7028bef94e95dce1313180 [2021-10-29 05:29:07,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:29:07,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:29:07,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:29:07,946 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:29:07,947 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:29:07,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2021-10-29 05:29:08,015 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/bin/utaipan-SDwSMHVbGG/data/4db0f0f9e/0b39be6945d74a1fae10ea77d939a59c/FLAG44b545050 [2021-10-29 05:29:08,556 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:29:08,557 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2021-10-29 05:29:08,569 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/bin/utaipan-SDwSMHVbGG/data/4db0f0f9e/0b39be6945d74a1fae10ea77d939a59c/FLAG44b545050 [2021-10-29 05:29:08,844 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/bin/utaipan-SDwSMHVbGG/data/4db0f0f9e/0b39be6945d74a1fae10ea77d939a59c [2021-10-29 05:29:08,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:29:08,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:29:08,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:29:08,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:29:08,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:29:08,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:29:08" (1/1) ... [2021-10-29 05:29:08,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4254612b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:29:08, skipping insertion in model container [2021-10-29 05:29:08,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:29:08" (1/1) ... [2021-10-29 05:29:08,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:29:08,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:29:09,107 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[840,853] [2021-10-29 05:29:09,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:29:09,291 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:29:09,304 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[840,853] [2021-10-29 05:29:09,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:29:09,405 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:29:09,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:29:09 WrapperNode [2021-10-29 05:29:09,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:29:09,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:29:09,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:29:09,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:29:09,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:29:09" (1/1) ... [2021-10-29 05:29:09,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:29:09" (1/1) ... [2021-10-29 05:29:09,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:29:09,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:29:09,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:29:09,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:29:09,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:29:09" (1/1) ... [2021-10-29 05:29:09,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:29:09" (1/1) ... [2021-10-29 05:29:09,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:29:09" (1/1) ... [2021-10-29 05:29:09,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:29:09" (1/1) ... [2021-10-29 05:29:09,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:29:09" (1/1) ... [2021-10-29 05:29:09,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:29:09" (1/1) ... [2021-10-29 05:29:09,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:29:09" (1/1) ... [2021-10-29 05:29:09,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:29:09,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:29:09,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:29:09,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:29:09,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:29:09" (1/1) ... [2021-10-29 05:29:09,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:29:09,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:29:09,558 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:29:09,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:29:09,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 05:29:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:29:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-29 05:29:09,600 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-29 05:29:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:29:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:29:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:29:09,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:29:09,602 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-29 05:29:09,807 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:29:09,807 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-29 05:29:09,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:29:09 BoogieIcfgContainer [2021-10-29 05:29:09,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:29:09,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:29:09,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:29:09,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:29:09,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:29:08" (1/3) ... [2021-10-29 05:29:09,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0f7f1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:29:09, skipping insertion in model container [2021-10-29 05:29:09,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:29:09" (2/3) ... [2021-10-29 05:29:09,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0f7f1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:29:09, skipping insertion in model container [2021-10-29 05:29:09,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:29:09" (3/3) ... [2021-10-29 05:29:09,819 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2021-10-29 05:29:09,824 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-29 05:29:09,824 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:29:09,824 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:29:09,825 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-29 05:29:09,847 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,847 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,847 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,848 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,848 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,849 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,849 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,862 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,862 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,863 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,863 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,864 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,864 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,864 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,864 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,864 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,865 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,865 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,865 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,865 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,866 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,866 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,866 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,866 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,867 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,867 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,867 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,867 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,868 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,868 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,868 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,869 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,869 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,869 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,873 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,873 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,873 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,873 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,874 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,874 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,874 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,874 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:29:09,892 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-29 05:29:09,965 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:29:09,984 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 [2021-10-29 05:29:09,984 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 05:29:10,014 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-29 05:29:10,027 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 37 transitions, 79 flow [2021-10-29 05:29:10,030 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 37 transitions, 79 flow [2021-10-29 05:29:10,032 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions, 79 flow [2021-10-29 05:29:10,079 INFO L129 PetriNetUnfolder]: 1/36 cut-off events. [2021-10-29 05:29:10,079 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-29 05:29:10,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 1/36 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. 0/34 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2021-10-29 05:29:10,088 INFO L116 LiptonReduction]: Number of co-enabled transitions 196 [2021-10-29 05:29:12,009 INFO L131 LiptonReduction]: Checked pairs total: 141 [2021-10-29 05:29:12,009 INFO L133 LiptonReduction]: Total number of compositions: 38 [2021-10-29 05:29:12,017 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 10 places, 6 transitions, 17 flow [2021-10-29 05:29:12,027 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) [2021-10-29 05:29:12,029 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) [2021-10-29 05:29:12,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 05:29:12,034 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:29:12,035 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-29 05:29:12,035 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:29:12,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:29:12,041 INFO L85 PathProgramCache]: Analyzing trace with hash 157763, now seen corresponding path program 1 times [2021-10-29 05:29:12,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:29:12,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085772212] [2021-10-29 05:29:12,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:29:12,051 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:29:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:29:12,166 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:29:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:29:12,207 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:29:12,209 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:29:12,210 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:29:12,212 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-29 05:29:12,213 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:29:12,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:29:12,216 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-29 05:29:12,221 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-29 05:29:12,221 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:29:12,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:29:12 BasicIcfg [2021-10-29 05:29:12,235 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:29:12,236 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:29:12,236 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:29:12,237 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:29:12,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:29:09" (3/4) ... [2021-10-29 05:29:12,239 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 05:29:12,272 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:29:12,273 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:29:12,275 INFO L168 Benchmark]: Toolchain (without parser) took 3425.84 ms. Allocated memory was 86.0 MB in the beginning and 125.8 MB in the end (delta: 39.8 MB). Free memory was 47.4 MB in the beginning and 53.6 MB in the end (delta: -6.1 MB). Peak memory consumption was 34.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:29:12,275 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 86.0 MB. Free memory was 65.6 MB in the beginning and 65.5 MB in the end (delta: 43.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:29:12,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 556.39 ms. Allocated memory was 86.0 MB in the beginning and 125.8 MB in the end (delta: 39.8 MB). Free memory was 47.2 MB in the beginning and 95.9 MB in the end (delta: -48.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2021-10-29 05:29:12,277 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.40 ms. Allocated memory is still 125.8 MB. Free memory was 95.9 MB in the beginning and 93.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:29:12,278 INFO L168 Benchmark]: Boogie Preprocessor took 47.25 ms. Allocated memory is still 125.8 MB. Free memory was 93.8 MB in the beginning and 92.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:29:12,278 INFO L168 Benchmark]: RCFGBuilder took 289.44 ms. Allocated memory is still 125.8 MB. Free memory was 92.5 MB in the beginning and 82.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:29:12,279 INFO L168 Benchmark]: TraceAbstraction took 2424.19 ms. Allocated memory is still 125.8 MB. Free memory was 82.2 MB in the beginning and 55.1 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:29:12,280 INFO L168 Benchmark]: Witness Printer took 36.60 ms. Allocated memory is still 125.8 MB. Free memory was 55.1 MB in the beginning and 53.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:29:12,283 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 86.0 MB. Free memory was 65.6 MB in the beginning and 65.5 MB in the end (delta: 43.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 556.39 ms. Allocated memory was 86.0 MB in the beginning and 125.8 MB in the end (delta: 39.8 MB). Free memory was 47.2 MB in the beginning and 95.9 MB in the end (delta: -48.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.40 ms. Allocated memory is still 125.8 MB. Free memory was 95.9 MB in the beginning and 93.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.25 ms. Allocated memory is still 125.8 MB. Free memory was 93.8 MB in the beginning and 92.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 289.44 ms. Allocated memory is still 125.8 MB. Free memory was 92.5 MB in the beginning and 82.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2424.19 ms. Allocated memory is still 125.8 MB. Free memory was 82.2 MB in the beginning and 55.1 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.1 GB. * Witness Printer took 36.60 ms. Allocated memory is still 125.8 MB. Free memory was 55.1 MB in the beginning and 53.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 40 PlacesBefore, 10 PlacesAfterwards, 37 TransitionsBefore, 6 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 38 TotalNumberOfCompositions, 141 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 141, positive: 141, positive conditional: 0, positive unconditional: 141, 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: 129, positive: 129, positive conditional: 0, positive unconditional: 129, 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: 129, positive: 129, positive conditional: 0, positive unconditional: 129, 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: 141, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 129, unknown conditional: 0, unknown unconditional: 129] , 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: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int x = 3; [L683] 0 pthread_t id; [L684] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) [L677] 1 int x = __VERIFIER_nondet_int(); [L13] COND TRUE 1 !(cond) [L13] 1 reach_error() - UnprovableResult [Line: 684]: 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, 52 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, 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, 0.0s 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! [2021-10-29 05:29:12,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fe9627-c00a-4f6a-b878-da1e259c4310/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...