./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.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_ab831f15-9a28-443e-a07e-70d2aaa17fcf/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab831f15-9a28-443e-a07e-70d2aaa17fcf/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_ab831f15-9a28-443e-a07e-70d2aaa17fcf/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab831f15-9a28-443e-a07e-70d2aaa17fcf/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab831f15-9a28-443e-a07e-70d2aaa17fcf/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_ab831f15-9a28-443e-a07e-70d2aaa17fcf/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 b8cdc72d9fd1f9edaca42b89520064daf5a921bac8001b0484fc3c068bd0ad1e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:56:57,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:56:57,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:56:57,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:56:57,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:56:57,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:56:57,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:56:57,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:56:57,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:56:57,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:56:57,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:56:57,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:56:57,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:56:57,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:56:57,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:56:57,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:56:57,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:56:57,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:56:57,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:56:57,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:56:57,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:56:57,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:56:57,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:56:57,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:56:57,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:56:57,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:56:57,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:56:57,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:56:57,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:56:57,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:56:57,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:56:57,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:56:57,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:56:57,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:56:57,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:56:57,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:56:57,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:56:57,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:56:57,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:56:57,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:56:57,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:56:57,456 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab831f15-9a28-443e-a07e-70d2aaa17fcf/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:56:57,519 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:56:57,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:56:57,523 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:56:57,523 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:56:57,523 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:56:57,524 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:56:57,524 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:56:57,524 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:56:57,532 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:56:57,532 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:56:57,534 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:56:57,534 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:56:57,535 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:56:57,535 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:56:57,535 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:56:57,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:56:57,536 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:56:57,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:56:57,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:56:57,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:56:57,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:56:57,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:56:57,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:56:57,538 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:56:57,539 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:56:57,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:56:57,539 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:56:57,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:56:57,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:56:57,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:56:57,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:56:57,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:56:57,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:56:57,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:56:57,542 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:56:57,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:56:57,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:56:57,543 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:56:57,543 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:56:57,543 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_ab831f15-9a28-443e-a07e-70d2aaa17fcf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab831f15-9a28-443e-a07e-70d2aaa17fcf/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8cdc72d9fd1f9edaca42b89520064daf5a921bac8001b0484fc3c068bd0ad1e [2021-10-29 05:56:57,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:56:57,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:56:57,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:56:57,928 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:56:57,929 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:56:57,931 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab831f15-9a28-443e-a07e-70d2aaa17fcf/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i [2021-10-29 05:56:58,026 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab831f15-9a28-443e-a07e-70d2aaa17fcf/bin/utaipan-SDwSMHVbGG/data/d1ee6c196/a3e88e4333734754837df67e7e7d3b56/FLAGa219a746f [2021-10-29 05:56:58,662 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:56:58,663 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab831f15-9a28-443e-a07e-70d2aaa17fcf/sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i [2021-10-29 05:56:58,685 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab831f15-9a28-443e-a07e-70d2aaa17fcf/bin/utaipan-SDwSMHVbGG/data/d1ee6c196/a3e88e4333734754837df67e7e7d3b56/FLAGa219a746f [2021-10-29 05:56:58,931 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab831f15-9a28-443e-a07e-70d2aaa17fcf/bin/utaipan-SDwSMHVbGG/data/d1ee6c196/a3e88e4333734754837df67e7e7d3b56 [2021-10-29 05:56:58,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:56:58,937 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:56:58,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:56:58,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:56:58,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:56:58,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:56:58" (1/1) ... [2021-10-29 05:56:58,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c85f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:58, skipping insertion in model container [2021-10-29 05:56:58,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:56:58" (1/1) ... [2021-10-29 05:56:58,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:56:59,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:56:59,252 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_ab831f15-9a28-443e-a07e-70d2aaa17fcf/sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i[830,843] [2021-10-29 05:56:59,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:56:59,469 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:56:59,484 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_ab831f15-9a28-443e-a07e-70d2aaa17fcf/sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i[830,843] [2021-10-29 05:56:59,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:56:59,572 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:56:59,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:59 WrapperNode [2021-10-29 05:56:59,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:56:59,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:56:59,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:56:59,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:56:59,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:59" (1/1) ... [2021-10-29 05:56:59,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:59" (1/1) ... [2021-10-29 05:56:59,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:56:59,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:56:59,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:56:59,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:56:59,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:59" (1/1) ... [2021-10-29 05:56:59,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:59" (1/1) ... [2021-10-29 05:56:59,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:59" (1/1) ... [2021-10-29 05:56:59,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:59" (1/1) ... [2021-10-29 05:56:59,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:59" (1/1) ... [2021-10-29 05:56:59,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:59" (1/1) ... [2021-10-29 05:56:59,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:59" (1/1) ... [2021-10-29 05:56:59,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:56:59,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:56:59,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:56:59,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:56:59,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:59" (1/1) ... [2021-10-29 05:56:59,726 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:56:59,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab831f15-9a28-443e-a07e-70d2aaa17fcf/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:56:59,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab831f15-9a28-443e-a07e-70d2aaa17fcf/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:56:59,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab831f15-9a28-443e-a07e-70d2aaa17fcf/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:56:59,815 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2021-10-29 05:56:59,815 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2021-10-29 05:56:59,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 05:56:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-29 05:56:59,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:56:59,819 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2021-10-29 05:56:59,819 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2021-10-29 05:56:59,819 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-29 05:56:59,819 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-29 05:56:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:56:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:56:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:56:59,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:56:59,822 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 05:57:00,358 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:57:00,364 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-29 05:57:00,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:57:00 BoogieIcfgContainer [2021-10-29 05:57:00,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:57:00,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:57:00,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:57:00,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:57:00,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:56:58" (1/3) ... [2021-10-29 05:57:00,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4747e4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:57:00, skipping insertion in model container [2021-10-29 05:57:00,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:59" (2/3) ... [2021-10-29 05:57:00,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4747e4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:57:00, skipping insertion in model container [2021-10-29 05:57:00,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:57:00" (3/3) ... [2021-10-29 05:57:00,381 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_21-traces-cluster-based_true.i [2021-10-29 05:57:00,389 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-29 05:57:00,389 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:57:00,390 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-29 05:57:00,390 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-29 05:57:00,465 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,465 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,465 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,465 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,466 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,466 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,466 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,466 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,466 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,467 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,467 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,467 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,467 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,468 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,468 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,468 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,468 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,468 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,469 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,469 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,469 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,469 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,470 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,470 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,470 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,470 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,470 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,471 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,471 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,471 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,471 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,472 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,472 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,472 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,473 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,473 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,473 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,473 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,473 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,474 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,474 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,474 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,474 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,478 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,479 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,479 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,480 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,481 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,483 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,483 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,484 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,484 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,486 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,486 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,486 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,486 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,487 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,487 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,487 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,487 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,488 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,489 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,489 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,490 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~x~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,490 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,490 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~x~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,490 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,491 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,492 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,492 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,493 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,493 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~y~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,494 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,495 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~y~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,495 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,495 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,496 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,496 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,498 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,499 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,500 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,505 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,505 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,506 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,508 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~x~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,508 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~x~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,514 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~y~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,516 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~y~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,516 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~x~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,517 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~y~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,518 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,518 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~x~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,519 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~y~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,519 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,520 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,520 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,520 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,521 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,522 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,537 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,537 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,539 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,539 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,540 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,540 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,541 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,542 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,542 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,545 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,545 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,546 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,546 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,546 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,547 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,547 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,547 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,548 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,548 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,549 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,549 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,549 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,549 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,550 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,550 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,550 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,550 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,551 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,552 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,552 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,553 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,553 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,553 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,553 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,554 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,554 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,554 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,555 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,557 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,557 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,557 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,558 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,558 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,558 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,559 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,559 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,559 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,559 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,560 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,560 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,564 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,564 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,565 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,565 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,565 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,565 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,566 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,566 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,566 WARN L313 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,566 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,567 WARN L313 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,579 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,579 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,579 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,580 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,580 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,580 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,580 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,581 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~y~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,581 WARN L313 ript$VariableManager]: TermVariabe |t3_funThread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,581 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,581 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,582 WARN L313 ript$VariableManager]: TermVariabe t3_funThread1of1ForFork1_~x~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,587 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,588 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,588 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,588 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,589 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,589 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,589 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,589 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,590 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:57:00,593 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-29 05:57:00,655 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:57:00,663 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 05:57:00,663 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-10-29 05:57:00,684 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-29 05:57:00,699 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 153 transitions, 321 flow [2021-10-29 05:57:00,702 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 153 transitions, 321 flow [2021-10-29 05:57:00,703 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 158 places, 153 transitions, 321 flow [2021-10-29 05:57:00,788 INFO L129 PetriNetUnfolder]: 5/150 cut-off events. [2021-10-29 05:57:00,788 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-29 05:57:00,801 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 150 events. 5/150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 240 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 118. Up to 2 conditions per place. [2021-10-29 05:57:00,811 INFO L116 LiptonReduction]: Number of co-enabled transitions 8414 [2021-10-29 05:57:09,932 INFO L131 LiptonReduction]: Checked pairs total: 22473 [2021-10-29 05:57:09,932 INFO L133 LiptonReduction]: Total number of compositions: 150 [2021-10-29 05:57:09,943 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 42 transitions, 99 flow [2021-10-29 05:57:10,232 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4932 states, 4921 states have (on average 3.806543385490754) internal successors, (18732), 4931 states have internal predecessors, (18732), 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 05:57:10,259 INFO L276 IsEmpty]: Start isEmpty. Operand has 4932 states, 4921 states have (on average 3.806543385490754) internal successors, (18732), 4931 states have internal predecessors, (18732), 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 05:57:10,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 05:57:10,269 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:57:10,270 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:57:10,271 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-29 05:57:10,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:57:10,278 INFO L85 PathProgramCache]: Analyzing trace with hash 980725377, now seen corresponding path program 1 times [2021-10-29 05:57:10,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:57:10,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595310071] [2021-10-29 05:57:10,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:57:10,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:57:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:57:10,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:57:10,660 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:57:10,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595310071] [2021-10-29 05:57:10,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595310071] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:57:10,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:57:10,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:57:10,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096002893] [2021-10-29 05:57:10,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:57:10,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:57:10,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:57:10,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:57:10,712 INFO L87 Difference]: Start difference. First operand has 4932 states, 4921 states have (on average 3.806543385490754) internal successors, (18732), 4931 states have internal predecessors, (18732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 05:57:11,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:57:11,154 INFO L93 Difference]: Finished difference Result 5834 states and 20301 transitions. [2021-10-29 05:57:11,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 05:57:11,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-29 05:57:11,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:57:11,273 INFO L225 Difference]: With dead ends: 5834 [2021-10-29 05:57:11,274 INFO L226 Difference]: Without dead ends: 5820 [2021-10-29 05:57:11,275 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:57:11,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5820 states. [2021-10-29 05:57:11,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5820 to 5577. [2021-10-29 05:57:11,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5577 states, 5566 states have (on average 3.5330578512396693) internal successors, (19665), 5576 states have internal predecessors, (19665), 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 05:57:11,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5577 states to 5577 states and 19665 transitions. [2021-10-29 05:57:11,790 INFO L78 Accepts]: Start accepts. Automaton has 5577 states and 19665 transitions. Word has length 8 [2021-10-29 05:57:11,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:57:11,791 INFO L470 AbstractCegarLoop]: Abstraction has 5577 states and 19665 transitions. [2021-10-29 05:57:11,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 05:57:11,793 INFO L276 IsEmpty]: Start isEmpty. Operand 5577 states and 19665 transitions. [2021-10-29 05:57:11,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:57:11,796 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:57:11,796 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:57:11,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:57:11,797 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-29 05:57:11,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:57:11,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1625019216, now seen corresponding path program 1 times [2021-10-29 05:57:11,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:57:11,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645317530] [2021-10-29 05:57:11,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:57:11,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:57:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:57:11,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:57:11,933 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:57:11,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645317530] [2021-10-29 05:57:11,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645317530] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:57:11,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:57:11,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:57:11,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899248740] [2021-10-29 05:57:11,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:57:11,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:57:11,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:57:11,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:57:11,939 INFO L87 Difference]: Start difference. First operand 5577 states and 19665 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:57:12,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:57:12,277 INFO L93 Difference]: Finished difference Result 7145 states and 25001 transitions. [2021-10-29 05:57:12,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 05:57:12,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-29 05:57:12,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:57:12,378 INFO L225 Difference]: With dead ends: 7145 [2021-10-29 05:57:12,378 INFO L226 Difference]: Without dead ends: 7030 [2021-10-29 05:57:12,379 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:57:12,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7030 states. [2021-10-29 05:57:12,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7030 to 6898. [2021-10-29 05:57:12,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6898 states, 6887 states have (on average 3.5209815594598517) internal successors, (24249), 6897 states have internal predecessors, (24249), 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 05:57:12,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6898 states to 6898 states and 24249 transitions. [2021-10-29 05:57:12,826 INFO L78 Accepts]: Start accepts. Automaton has 6898 states and 24249 transitions. Word has length 10 [2021-10-29 05:57:12,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:57:12,827 INFO L470 AbstractCegarLoop]: Abstraction has 6898 states and 24249 transitions. [2021-10-29 05:57:12,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:57:12,828 INFO L276 IsEmpty]: Start isEmpty. Operand 6898 states and 24249 transitions. [2021-10-29 05:57:12,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 05:57:12,830 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:57:12,830 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:57:12,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:57:12,831 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-29 05:57:12,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:57:12,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1415334284, now seen corresponding path program 1 times [2021-10-29 05:57:12,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:57:12,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066088168] [2021-10-29 05:57:12,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:57:12,833 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:57:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:57:12,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:57:12,927 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:57:12,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066088168] [2021-10-29 05:57:12,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066088168] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:57:12,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:57:12,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:57:12,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355483273] [2021-10-29 05:57:12,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:57:12,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:57:12,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:57:12,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:57:12,939 INFO L87 Difference]: Start difference. First operand 6898 states and 24249 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:57:13,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:57:13,050 INFO L93 Difference]: Finished difference Result 4359 states and 11602 transitions. [2021-10-29 05:57:13,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:57:13,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-29 05:57:13,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:57:13,145 INFO L225 Difference]: With dead ends: 4359 [2021-10-29 05:57:13,145 INFO L226 Difference]: Without dead ends: 4347 [2021-10-29 05:57:13,146 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:57:13,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4347 states. [2021-10-29 05:57:13,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4347 to 3823. [2021-10-29 05:57:13,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3823 states, 3798 states have (on average 2.69536598209584) internal successors, (10237), 3822 states have internal predecessors, (10237), 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 05:57:13,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3823 states to 3823 states and 10237 transitions. [2021-10-29 05:57:13,469 INFO L78 Accepts]: Start accepts. Automaton has 3823 states and 10237 transitions. Word has length 11 [2021-10-29 05:57:13,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:57:13,469 INFO L470 AbstractCegarLoop]: Abstraction has 3823 states and 10237 transitions. [2021-10-29 05:57:13,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:57:13,470 INFO L276 IsEmpty]: Start isEmpty. Operand 3823 states and 10237 transitions. [2021-10-29 05:57:13,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 05:57:13,474 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:57:13,474 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:57:13,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 05:57:13,475 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-29 05:57:13,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:57:13,475 INFO L85 PathProgramCache]: Analyzing trace with hash -704733148, now seen corresponding path program 1 times [2021-10-29 05:57:13,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:57:13,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932050775] [2021-10-29 05:57:13,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:57:13,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:57:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:57:13,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:57:13,635 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:57:13,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932050775] [2021-10-29 05:57:13,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932050775] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:57:13,637 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:57:13,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:57:13,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312060101] [2021-10-29 05:57:13,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:57:13,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:57:13,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:57:13,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:57:13,641 INFO L87 Difference]: Start difference. First operand 3823 states and 10237 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 05:57:13,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:57:13,848 INFO L93 Difference]: Finished difference Result 3835 states and 10331 transitions. [2021-10-29 05:57:13,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 05:57:13,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 05:57:13,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:57:13,872 INFO L225 Difference]: With dead ends: 3835 [2021-10-29 05:57:13,872 INFO L226 Difference]: Without dead ends: 3581 [2021-10-29 05:57:13,873 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:57:13,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3581 states. [2021-10-29 05:57:14,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3581 to 3571. [2021-10-29 05:57:14,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3571 states, 3546 states have (on average 2.7013536379018612) internal successors, (9579), 3570 states have internal predecessors, (9579), 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 05:57:14,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 9579 transitions. [2021-10-29 05:57:14,163 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 9579 transitions. Word has length 12 [2021-10-29 05:57:14,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:57:14,163 INFO L470 AbstractCegarLoop]: Abstraction has 3571 states and 9579 transitions. [2021-10-29 05:57:14,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 05:57:14,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 9579 transitions. [2021-10-29 05:57:14,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 05:57:14,166 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:57:14,166 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:57:14,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-29 05:57:14,166 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-29 05:57:14,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:57:14,171 INFO L85 PathProgramCache]: Analyzing trace with hash 317188475, now seen corresponding path program 1 times [2021-10-29 05:57:14,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:57:14,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734336657] [2021-10-29 05:57:14,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:57:14,172 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:57:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:57:14,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:57:14,284 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:57:14,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734336657] [2021-10-29 05:57:14,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734336657] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:57:14,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:57:14,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:57:14,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603130296] [2021-10-29 05:57:14,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:57:14,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:57:14,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:57:14,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:57:14,288 INFO L87 Difference]: Start difference. First operand 3571 states and 9579 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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 05:57:14,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:57:14,485 INFO L93 Difference]: Finished difference Result 4157 states and 10929 transitions. [2021-10-29 05:57:14,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:57:14,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-29 05:57:14,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:57:14,506 INFO L225 Difference]: With dead ends: 4157 [2021-10-29 05:57:14,507 INFO L226 Difference]: Without dead ends: 4113 [2021-10-29 05:57:14,507 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:57:14,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4113 states. [2021-10-29 05:57:14,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4113 to 3535. [2021-10-29 05:57:14,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3535 states, 3512 states have (on average 2.6984624145785876) internal successors, (9477), 3534 states have internal predecessors, (9477), 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 05:57:14,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3535 states to 3535 states and 9477 transitions. [2021-10-29 05:57:14,704 INFO L78 Accepts]: Start accepts. Automaton has 3535 states and 9477 transitions. Word has length 13 [2021-10-29 05:57:14,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:57:14,705 INFO L470 AbstractCegarLoop]: Abstraction has 3535 states and 9477 transitions. [2021-10-29 05:57:14,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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 05:57:14,705 INFO L276 IsEmpty]: Start isEmpty. Operand 3535 states and 9477 transitions. [2021-10-29 05:57:14,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 05:57:14,707 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:57:14,707 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:57:14,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-29 05:57:14,708 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-29 05:57:14,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:57:14,708 INFO L85 PathProgramCache]: Analyzing trace with hash -252668342, now seen corresponding path program 1 times [2021-10-29 05:57:14,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:57:14,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404161204] [2021-10-29 05:57:14,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:57:14,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:57:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:57:14,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:57:14,875 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:57:14,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404161204] [2021-10-29 05:57:14,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404161204] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:57:14,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:57:14,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:57:14,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598392386] [2021-10-29 05:57:14,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:57:14,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:57:14,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:57:14,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:57:14,881 INFO L87 Difference]: Start difference. First operand 3535 states and 9477 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 05:57:14,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:57:14,984 INFO L93 Difference]: Finished difference Result 1459 states and 3149 transitions. [2021-10-29 05:57:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:57:14,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-29 05:57:14,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:57:14,991 INFO L225 Difference]: With dead ends: 1459 [2021-10-29 05:57:14,991 INFO L226 Difference]: Without dead ends: 1400 [2021-10-29 05:57:14,991 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:57:14,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2021-10-29 05:57:15,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1372. [2021-10-29 05:57:15,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 1354 states have (on average 2.20384047267356) internal successors, (2984), 1371 states have internal predecessors, (2984), 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 05:57:15,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 2984 transitions. [2021-10-29 05:57:15,036 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 2984 transitions. Word has length 15 [2021-10-29 05:57:15,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:57:15,037 INFO L470 AbstractCegarLoop]: Abstraction has 1372 states and 2984 transitions. [2021-10-29 05:57:15,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 05:57:15,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 2984 transitions. [2021-10-29 05:57:15,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 05:57:15,039 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:57:15,039 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:57:15,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-29 05:57:15,039 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-29 05:57:15,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:57:15,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1076676404, now seen corresponding path program 1 times [2021-10-29 05:57:15,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:57:15,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975161543] [2021-10-29 05:57:15,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:57:15,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:57:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:57:15,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:57:15,140 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:57:15,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975161543] [2021-10-29 05:57:15,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975161543] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:57:15,141 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:57:15,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:57:15,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69224413] [2021-10-29 05:57:15,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:57:15,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:57:15,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:57:15,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:57:15,143 INFO L87 Difference]: Start difference. First operand 1372 states and 2984 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 05:57:15,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:57:15,384 INFO L93 Difference]: Finished difference Result 1525 states and 3201 transitions. [2021-10-29 05:57:15,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-29 05:57:15,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-29 05:57:15,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:57:15,391 INFO L225 Difference]: With dead ends: 1525 [2021-10-29 05:57:15,391 INFO L226 Difference]: Without dead ends: 1454 [2021-10-29 05:57:15,392 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-10-29 05:57:15,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2021-10-29 05:57:15,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1270. [2021-10-29 05:57:15,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1256 states have (on average 2.162420382165605) internal successors, (2716), 1269 states have internal predecessors, (2716), 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 05:57:15,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 2716 transitions. [2021-10-29 05:57:15,490 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 2716 transitions. Word has length 16 [2021-10-29 05:57:15,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:57:15,491 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 2716 transitions. [2021-10-29 05:57:15,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 05:57:15,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 2716 transitions. [2021-10-29 05:57:15,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 05:57:15,493 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:57:15,493 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:57:15,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-29 05:57:15,494 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-29 05:57:15,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:57:15,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2006778841, now seen corresponding path program 1 times [2021-10-29 05:57:15,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:57:15,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590963774] [2021-10-29 05:57:15,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:57:15,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:57:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:57:15,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:57:15,597 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:57:15,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590963774] [2021-10-29 05:57:15,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590963774] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:57:15,598 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:57:15,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:57:15,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455632166] [2021-10-29 05:57:15,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:57:15,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:57:15,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:57:15,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:57:15,600 INFO L87 Difference]: Start difference. First operand 1270 states and 2716 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:57:15,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:57:15,821 INFO L93 Difference]: Finished difference Result 1304 states and 2717 transitions. [2021-10-29 05:57:15,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-29 05:57:15,822 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-29 05:57:15,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:57:15,827 INFO L225 Difference]: With dead ends: 1304 [2021-10-29 05:57:15,827 INFO L226 Difference]: Without dead ends: 1202 [2021-10-29 05:57:15,828 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-10-29 05:57:15,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2021-10-29 05:57:15,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1064. [2021-10-29 05:57:15,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 1056 states have (on average 2.065340909090909) internal successors, (2181), 1063 states have internal predecessors, (2181), 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 05:57:15,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 2181 transitions. [2021-10-29 05:57:15,870 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 2181 transitions. Word has length 19 [2021-10-29 05:57:15,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:57:15,870 INFO L470 AbstractCegarLoop]: Abstraction has 1064 states and 2181 transitions. [2021-10-29 05:57:15,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:57:15,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 2181 transitions. [2021-10-29 05:57:15,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 05:57:15,873 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:57:15,873 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:57:15,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-29 05:57:15,874 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-29 05:57:15,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:57:15,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1118869036, now seen corresponding path program 1 times [2021-10-29 05:57:15,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:57:15,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885509690] [2021-10-29 05:57:15,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:57:15,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:57:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:57:15,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:57:15,957 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:57:15,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885509690] [2021-10-29 05:57:15,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885509690] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:57:15,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:57:15,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:57:15,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189670764] [2021-10-29 05:57:15,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:57:15,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:57:15,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:57:15,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:57:15,961 INFO L87 Difference]: Start difference. First operand 1064 states and 2181 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:57:16,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:57:16,032 INFO L93 Difference]: Finished difference Result 417 states and 711 transitions. [2021-10-29 05:57:16,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:57:16,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-29 05:57:16,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:57:16,035 INFO L225 Difference]: With dead ends: 417 [2021-10-29 05:57:16,035 INFO L226 Difference]: Without dead ends: 344 [2021-10-29 05:57:16,035 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:57:16,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-10-29 05:57:16,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 306. [2021-10-29 05:57:16,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 1.7836065573770492) internal successors, (544), 305 states have internal predecessors, (544), 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 05:57:16,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 544 transitions. [2021-10-29 05:57:16,047 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 544 transitions. Word has length 19 [2021-10-29 05:57:16,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:57:16,048 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 544 transitions. [2021-10-29 05:57:16,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:57:16,048 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 544 transitions. [2021-10-29 05:57:16,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 05:57:16,050 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:57:16,050 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:57:16,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-29 05:57:16,051 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-29 05:57:16,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:57:16,051 INFO L85 PathProgramCache]: Analyzing trace with hash 945745723, now seen corresponding path program 1 times [2021-10-29 05:57:16,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:57:16,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211047441] [2021-10-29 05:57:16,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:57:16,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:57:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:57:16,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:57:16,115 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:57:16,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211047441] [2021-10-29 05:57:16,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211047441] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:57:16,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:57:16,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:57:16,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338565196] [2021-10-29 05:57:16,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:57:16,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:57:16,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:57:16,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:57:16,119 INFO L87 Difference]: Start difference. First operand 306 states and 544 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 05:57:16,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:57:16,215 INFO L93 Difference]: Finished difference Result 281 states and 494 transitions. [2021-10-29 05:57:16,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:57:16,216 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-29 05:57:16,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:57:16,217 INFO L225 Difference]: With dead ends: 281 [2021-10-29 05:57:16,217 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:57:16,217 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-29 05:57:16,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:57:16,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:57:16,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 05:57:16,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:57:16,219 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-10-29 05:57:16,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:57:16,219 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:57:16,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 05:57:16,220 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:57:16,220 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:57:16,223 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:57:16,224 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:57:16,224 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:57:16,224 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:57:16,225 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-29 05:57:16,225 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-29 05:57:16,225 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-29 05:57:16,225 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:57:16,226 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:57:16,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-29 05:57:16,229 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:57:16,234 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-29 05:57:16,234 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:57:16,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:57:16 BasicIcfg [2021-10-29 05:57:16,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:57:16,238 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:57:16,238 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:57:16,238 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:57:16,239 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:57:00" (3/4) ... [2021-10-29 05:57:16,241 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:57:16,248 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2021-10-29 05:57:16,248 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t3_fun [2021-10-29 05:57:16,249 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-10-29 05:57:16,255 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-29 05:57:16,255 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 05:57:16,256 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:57:16,256 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:57:16,322 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab831f15-9a28-443e-a07e-70d2aaa17fcf/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:57:16,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:57:16,324 INFO L168 Benchmark]: Toolchain (without parser) took 17386.27 ms. Allocated memory was 107.0 MB in the beginning and 604.0 MB in the end (delta: 497.0 MB). Free memory was 69.0 MB in the beginning and 407.7 MB in the end (delta: -338.7 MB). Peak memory consumption was 157.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:57:16,325 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 107.0 MB. Free memory is still 87.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:57:16,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.55 ms. Allocated memory is still 107.0 MB. Free memory was 68.8 MB in the beginning and 72.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:57:16,326 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.68 ms. Allocated memory is still 107.0 MB. Free memory was 72.1 MB in the beginning and 70.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:57:16,327 INFO L168 Benchmark]: Boogie Preprocessor took 72.72 ms. Allocated memory is still 107.0 MB. Free memory was 70.0 MB in the beginning and 68.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:57:16,328 INFO L168 Benchmark]: RCFGBuilder took 656.47 ms. Allocated memory is still 107.0 MB. Free memory was 68.6 MB in the beginning and 53.7 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:57:16,329 INFO L168 Benchmark]: TraceAbstraction took 15866.08 ms. Allocated memory was 107.0 MB in the beginning and 604.0 MB in the end (delta: 497.0 MB). Free memory was 53.2 MB in the beginning and 410.8 MB in the end (delta: -357.6 MB). Peak memory consumption was 140.9 MB. Max. memory is 16.1 GB. [2021-10-29 05:57:16,329 INFO L168 Benchmark]: Witness Printer took 84.69 ms. Allocated memory is still 604.0 MB. Free memory was 410.8 MB in the beginning and 407.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:57:16,332 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 107.0 MB. Free memory is still 87.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 634.55 ms. Allocated memory is still 107.0 MB. Free memory was 68.8 MB in the beginning and 72.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.68 ms. Allocated memory is still 107.0 MB. Free memory was 72.1 MB in the beginning and 70.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.72 ms. Allocated memory is still 107.0 MB. Free memory was 70.0 MB in the beginning and 68.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 656.47 ms. Allocated memory is still 107.0 MB. Free memory was 68.6 MB in the beginning and 53.7 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15866.08 ms. Allocated memory was 107.0 MB in the beginning and 604.0 MB in the end (delta: 497.0 MB). Free memory was 53.2 MB in the beginning and 410.8 MB in the end (delta: -357.6 MB). Peak memory consumption was 140.9 MB. Max. memory is 16.1 GB. * Witness Printer took 84.69 ms. Allocated memory is still 604.0 MB. Free memory was 410.8 MB in the beginning and 407.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.2s, 158 PlacesBefore, 49 PlacesAfterwards, 153 TransitionsBefore, 42 TransitionsAfterwards, 8414 CoEnabledTransitionPairs, 9 FixpointIterations, 34 TrivialSequentialCompositions, 97 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 17 ConcurrentYvCompositions, 2 ChoiceCompositions, 150 TotalNumberOfCompositions, 22473 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10491, positive: 10044, positive conditional: 0, positive unconditional: 10044, negative: 447, negative conditional: 0, negative unconditional: 447, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6005, positive: 5912, positive conditional: 0, positive unconditional: 5912, negative: 93, negative conditional: 0, negative unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6005, positive: 5733, positive conditional: 0, positive unconditional: 5733, negative: 272, negative conditional: 0, negative unconditional: 272, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 272, positive: 179, positive conditional: 0, positive unconditional: 179, negative: 93, negative conditional: 0, negative unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 478, positive: 205, positive conditional: 0, positive unconditional: 205, negative: 274, negative conditional: 0, negative unconditional: 274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10491, positive: 4132, positive conditional: 0, positive unconditional: 4132, negative: 354, negative conditional: 0, negative unconditional: 354, unknown: 6005, unknown conditional: 0, unknown unconditional: 6005] , Statistics on independence cache: Total cache size (in pairs): 413, Positive cache size: 361, Positive conditional cache size: 0, Positive unconditional cache size: 361, Negative cache size: 52, Negative conditional cache size: 0, Negative unconditional cache size: 52 - 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 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 219 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 15.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 602 SDtfs, 975 SDslu, 1050 SDs, 0 SdLazy, 709 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6898occurred in iteration=2, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 10 MinimizatonAttempts, 1875 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 672 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-29 05:57:16,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab831f15-9a28-443e-a07e-70d2aaa17fcf/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...