./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 677126e8d6773c92cc337bfe0a3ec155f49f784424155f33a8c9c24ee0a42113 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 15:19:34,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:19:34,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:19:34,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:19:34,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:19:34,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:19:34,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:19:34,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:19:34,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:19:34,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:19:34,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:19:34,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:19:34,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:19:34,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:19:34,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:19:34,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:19:34,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:19:34,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:19:34,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:19:34,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:19:34,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:19:34,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:19:34,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:19:34,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:19:34,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:19:34,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:19:34,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:19:34,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:19:34,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:19:34,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:19:34,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:19:34,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:19:34,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:19:34,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:19:34,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:19:34,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:19:34,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:19:34,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:19:34,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:19:34,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:19:34,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:19:34,471 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 15:19:34,491 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:19:34,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:19:34,492 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:19:34,498 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:19:34,498 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:19:34,499 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:19:34,499 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:19:34,499 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:19:34,499 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:19:34,499 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:19:34,500 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:19:34,500 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:19:34,500 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:19:34,500 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:19:34,500 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:19:34,501 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:19:34,501 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:19:34,501 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:19:34,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:19:34,502 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:19:34,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:19:34,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:19:34,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:19:34,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:19:34,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:19:34,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:19:34,503 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:19:34,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:19:34,503 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:19:34,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:19:34,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:19:34,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:19:34,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:19:34,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:19:34,505 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:19:34,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:19:34,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:19:34,505 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:19:34,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:19:34,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:19:34,506 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:19:34,506 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 677126e8d6773c92cc337bfe0a3ec155f49f784424155f33a8c9c24ee0a42113 [2022-12-14 15:19:34,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:19:34,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:19:34,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:19:34,700 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:19:34,700 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:19:34,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2022-12-14 15:19:37,365 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:19:37,519 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:19:37,520 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2022-12-14 15:19:37,526 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/data/8c50b94e6/8887c5cd25e74c02b009916494cfb38a/FLAGa4e719908 [2022-12-14 15:19:37,536 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/data/8c50b94e6/8887c5cd25e74c02b009916494cfb38a [2022-12-14 15:19:37,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:19:37,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:19:37,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:19:37,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:19:37,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:19:37,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:19:37" (1/1) ... [2022-12-14 15:19:37,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f93d336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:19:37, skipping insertion in model container [2022-12-14 15:19:37,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:19:37" (1/1) ... [2022-12-14 15:19:37,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:19:37,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:19:37,670 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[640,653] [2022-12-14 15:19:37,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:19:37,722 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:19:37,730 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[640,653] [2022-12-14 15:19:37,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:19:37,758 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:19:37,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:19:37 WrapperNode [2022-12-14 15:19:37,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:19:37,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:19:37,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:19:37,759 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:19:37,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:19:37" (1/1) ... [2022-12-14 15:19:37,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:19:37" (1/1) ... [2022-12-14 15:19:37,786 INFO L138 Inliner]: procedures = 31, calls = 35, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 225 [2022-12-14 15:19:37,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:19:37,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:19:37,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:19:37,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:19:37,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:19:37" (1/1) ... [2022-12-14 15:19:37,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:19:37" (1/1) ... [2022-12-14 15:19:37,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:19:37" (1/1) ... [2022-12-14 15:19:37,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:19:37" (1/1) ... [2022-12-14 15:19:37,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:19:37" (1/1) ... [2022-12-14 15:19:37,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:19:37" (1/1) ... [2022-12-14 15:19:37,803 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:19:37" (1/1) ... [2022-12-14 15:19:37,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:19:37" (1/1) ... [2022-12-14 15:19:37,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:19:37,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:19:37,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:19:37,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:19:37,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:19:37" (1/1) ... [2022-12-14 15:19:37,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:19:37,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:19:37,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:19:37,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:19:37,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:19:37,865 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-12-14 15:19:37,865 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-12-14 15:19:37,865 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2022-12-14 15:19:37,865 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2022-12-14 15:19:37,866 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-12-14 15:19:37,866 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-12-14 15:19:37,866 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-12-14 15:19:37,866 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-12-14 15:19:37,866 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-12-14 15:19:37,866 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-12-14 15:19:37,866 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-12-14 15:19:37,867 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-12-14 15:19:37,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:19:37,867 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-12-14 15:19:37,867 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-12-14 15:19:37,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:19:37,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:19:37,867 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2022-12-14 15:19:37,868 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2022-12-14 15:19:37,927 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:19:37,929 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:19:38,164 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !(1 == ~q_free~0); [2022-12-14 15:19:38,164 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2022-12-14 15:19:38,179 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:19:38,268 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:19:38,268 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 15:19:38,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:19:38 BoogieIcfgContainer [2022-12-14 15:19:38,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:19:38,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:19:38,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:19:38,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:19:38,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:19:37" (1/3) ... [2022-12-14 15:19:38,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52aec392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:19:38, skipping insertion in model container [2022-12-14 15:19:38,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:19:37" (2/3) ... [2022-12-14 15:19:38,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52aec392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:19:38, skipping insertion in model container [2022-12-14 15:19:38,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:19:38" (3/3) ... [2022-12-14 15:19:38,278 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2022-12-14 15:19:38,292 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:19:38,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 15:19:38,328 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:19:38,333 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4735c622, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:19:38,333 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 15:19:38,336 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 53 states have (on average 1.490566037735849) internal successors, (79), 57 states have internal predecessors, (79), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 15:19:38,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 15:19:38,342 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:19:38,343 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:19:38,343 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:19:38,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:19:38,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1478486067, now seen corresponding path program 1 times [2022-12-14 15:19:38,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:19:38,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665208287] [2022-12-14 15:19:38,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:19:38,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:19:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:19:38,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:19:38,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:19:38,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665208287] [2022-12-14 15:19:38,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665208287] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:19:38,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:19:38,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:19:38,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531164016] [2022-12-14 15:19:38,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:19:38,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:19:38,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:19:38,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:19:38,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:19:38,592 INFO L87 Difference]: Start difference. First operand has 79 states, 53 states have (on average 1.490566037735849) internal successors, (79), 57 states have internal predecessors, (79), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2022-12-14 15:19:38,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:19:38,784 INFO L93 Difference]: Finished difference Result 219 states and 311 transitions. [2022-12-14 15:19:38,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:19:38,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 43 [2022-12-14 15:19:38,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:19:38,792 INFO L225 Difference]: With dead ends: 219 [2022-12-14 15:19:38,792 INFO L226 Difference]: Without dead ends: 141 [2022-12-14 15:19:38,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:19:38,797 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 175 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:19:38,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 227 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:19:38,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-12-14 15:19:38,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 136. [2022-12-14 15:19:38,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 95 states have (on average 1.3789473684210527) internal successors, (131), 97 states have internal predecessors, (131), 26 states have call successors, (26), 15 states have call predecessors, (26), 14 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-12-14 15:19:38,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 181 transitions. [2022-12-14 15:19:38,835 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 181 transitions. Word has length 43 [2022-12-14 15:19:38,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:19:38,835 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 181 transitions. [2022-12-14 15:19:38,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2022-12-14 15:19:38,835 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 181 transitions. [2022-12-14 15:19:38,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 15:19:38,837 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:19:38,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:19:38,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:19:38,837 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:19:38,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:19:38,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1545033349, now seen corresponding path program 1 times [2022-12-14 15:19:38,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:19:38,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744138667] [2022-12-14 15:19:38,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:19:38,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:19:38,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:19:38,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:19:38,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:19:38,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744138667] [2022-12-14 15:19:38,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744138667] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:19:38,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:19:38,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:19:38,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882696867] [2022-12-14 15:19:38,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:19:38,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:19:38,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:19:38,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:19:38,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:19:38,909 INFO L87 Difference]: Start difference. First operand 136 states and 181 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-14 15:19:39,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:19:39,056 INFO L93 Difference]: Finished difference Result 385 states and 513 transitions. [2022-12-14 15:19:39,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:19:39,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 44 [2022-12-14 15:19:39,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:19:39,060 INFO L225 Difference]: With dead ends: 385 [2022-12-14 15:19:39,060 INFO L226 Difference]: Without dead ends: 254 [2022-12-14 15:19:39,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:19:39,061 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 172 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:19:39,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 232 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:19:39,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-12-14 15:19:39,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 252. [2022-12-14 15:19:39,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 177 states have (on average 1.3163841807909604) internal successors, (233), 179 states have internal predecessors, (233), 46 states have call successors, (46), 29 states have call predecessors, (46), 28 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-12-14 15:19:39,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 323 transitions. [2022-12-14 15:19:39,083 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 323 transitions. Word has length 44 [2022-12-14 15:19:39,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:19:39,084 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 323 transitions. [2022-12-14 15:19:39,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-14 15:19:39,084 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 323 transitions. [2022-12-14 15:19:39,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 15:19:39,085 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:19:39,085 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:19:39,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:19:39,085 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:19:39,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:19:39,086 INFO L85 PathProgramCache]: Analyzing trace with hash 239970034, now seen corresponding path program 1 times [2022-12-14 15:19:39,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:19:39,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899653586] [2022-12-14 15:19:39,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:19:39,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:19:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:19:39,263 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 15:19:39,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:19:39,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899653586] [2022-12-14 15:19:39,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899653586] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:19:39,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:19:39,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 15:19:39,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252680557] [2022-12-14 15:19:39,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:19:39,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 15:19:39,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:19:39,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 15:19:39,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:19:39,266 INFO L87 Difference]: Start difference. First operand 252 states and 323 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-12-14 15:19:39,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:19:39,642 INFO L93 Difference]: Finished difference Result 631 states and 804 transitions. [2022-12-14 15:19:39,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 15:19:39,642 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 56 [2022-12-14 15:19:39,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:19:39,647 INFO L225 Difference]: With dead ends: 631 [2022-12-14 15:19:39,648 INFO L226 Difference]: Without dead ends: 385 [2022-12-14 15:19:39,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2022-12-14 15:19:39,649 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 235 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:19:39,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 320 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 15:19:39,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-12-14 15:19:39,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 363. [2022-12-14 15:19:39,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 254 states have (on average 1.3070866141732282) internal successors, (332), 256 states have internal predecessors, (332), 66 states have call successors, (66), 43 states have call predecessors, (66), 42 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 15:19:39,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 462 transitions. [2022-12-14 15:19:39,681 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 462 transitions. Word has length 56 [2022-12-14 15:19:39,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:19:39,681 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 462 transitions. [2022-12-14 15:19:39,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-12-14 15:19:39,681 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 462 transitions. [2022-12-14 15:19:39,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-14 15:19:39,683 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:19:39,683 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:19:39,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:19:39,683 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:19:39,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:19:39,683 INFO L85 PathProgramCache]: Analyzing trace with hash 55423008, now seen corresponding path program 1 times [2022-12-14 15:19:39,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:19:39,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920539098] [2022-12-14 15:19:39,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:19:39,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:19:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:19:39,735 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:19:39,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:19:39,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920539098] [2022-12-14 15:19:39,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920539098] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:19:39,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:19:39,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:19:39,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949231830] [2022-12-14 15:19:39,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:19:39,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:19:39,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:19:39,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:19:39,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:19:39,738 INFO L87 Difference]: Start difference. First operand 363 states and 462 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 15:19:39,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:19:39,807 INFO L93 Difference]: Finished difference Result 675 states and 866 transitions. [2022-12-14 15:19:39,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:19:39,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2022-12-14 15:19:39,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:19:39,810 INFO L225 Difference]: With dead ends: 675 [2022-12-14 15:19:39,810 INFO L226 Difference]: Without dead ends: 487 [2022-12-14 15:19:39,811 INFO L412 NwaCegarLoop]: 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 [2022-12-14 15:19:39,812 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 54 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:19:39,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 219 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:19:39,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2022-12-14 15:19:39,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 399. [2022-12-14 15:19:39,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 284 states have (on average 1.3098591549295775) internal successors, (372), 286 states have internal predecessors, (372), 69 states have call successors, (69), 46 states have call predecessors, (69), 45 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-12-14 15:19:39,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 508 transitions. [2022-12-14 15:19:39,853 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 508 transitions. Word has length 58 [2022-12-14 15:19:39,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:19:39,854 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 508 transitions. [2022-12-14 15:19:39,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 15:19:39,854 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 508 transitions. [2022-12-14 15:19:39,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-12-14 15:19:39,859 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:19:39,860 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:19:39,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 15:19:39,860 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:19:39,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:19:39,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1476482187, now seen corresponding path program 1 times [2022-12-14 15:19:39,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:19:39,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037296003] [2022-12-14 15:19:39,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:19:39,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:19:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:19:40,309 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 14 proven. 16 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 15:19:40,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:19:40,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037296003] [2022-12-14 15:19:40,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037296003] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:19:40,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762362329] [2022-12-14 15:19:40,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:19:40,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:19:40,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:19:40,312 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:19:40,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:19:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:19:40,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 15:19:40,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:19:40,520 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 15:19:40,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:19:40,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762362329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:19:40,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:19:40,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 14 [2022-12-14 15:19:40,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029673127] [2022-12-14 15:19:40,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:19:40,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:19:40,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:19:40,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:19:40,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-14 15:19:40,523 INFO L87 Difference]: Start difference. First operand 399 states and 508 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 15:19:40,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:19:40,604 INFO L93 Difference]: Finished difference Result 1004 states and 1284 transitions. [2022-12-14 15:19:40,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:19:40,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 105 [2022-12-14 15:19:40,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:19:40,607 INFO L225 Difference]: With dead ends: 1004 [2022-12-14 15:19:40,607 INFO L226 Difference]: Without dead ends: 780 [2022-12-14 15:19:40,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-14 15:19:40,609 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 47 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:19:40,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 180 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:19:40,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2022-12-14 15:19:40,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 776. [2022-12-14 15:19:40,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 559 states have (on average 1.3094812164579606) internal successors, (732), 561 states have internal predecessors, (732), 126 states have call successors, (126), 91 states have call predecessors, (126), 90 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2022-12-14 15:19:40,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 982 transitions. [2022-12-14 15:19:40,653 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 982 transitions. Word has length 105 [2022-12-14 15:19:40,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:19:40,653 INFO L495 AbstractCegarLoop]: Abstraction has 776 states and 982 transitions. [2022-12-14 15:19:40,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 15:19:40,653 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 982 transitions. [2022-12-14 15:19:40,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-12-14 15:19:40,655 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:19:40,655 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:19:40,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:19:40,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:19:40,857 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:19:40,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:19:40,858 INFO L85 PathProgramCache]: Analyzing trace with hash -437676894, now seen corresponding path program 1 times [2022-12-14 15:19:40,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:19:40,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947552428] [2022-12-14 15:19:40,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:19:40,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:19:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:19:41,247 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 14 proven. 16 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-14 15:19:41,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:19:41,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947552428] [2022-12-14 15:19:41,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947552428] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:19:41,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564941321] [2022-12-14 15:19:41,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:19:41,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:19:41,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:19:41,249 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:19:41,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:19:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:19:41,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 15:19:41,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:19:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 15:19:41,407 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:19:41,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564941321] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:19:41,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:19:41,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2022-12-14 15:19:41,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46540123] [2022-12-14 15:19:41,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:19:41,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:19:41,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:19:41,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:19:41,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-14 15:19:41,408 INFO L87 Difference]: Start difference. First operand 776 states and 982 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 15:19:41,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:19:41,467 INFO L93 Difference]: Finished difference Result 1192 states and 1523 transitions. [2022-12-14 15:19:41,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:19:41,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 106 [2022-12-14 15:19:41,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:19:41,468 INFO L225 Difference]: With dead ends: 1192 [2022-12-14 15:19:41,468 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 15:19:41,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-14 15:19:41,470 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 39 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:19:41,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 71 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:19:41,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 15:19:41,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 15:19:41,471 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) [2022-12-14 15:19:41,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 15:19:41,472 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 106 [2022-12-14 15:19:41,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:19:41,472 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 15:19:41,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 15:19:41,472 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 15:19:41,472 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 15:19:41,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 15:19:41,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:19:41,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:19:41,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 15:19:43,740 INFO L895 garLoopResultBuilder]: At program point L385(line 385) the Hoare annotation is: (let ((.cse0 (not (<= ~c_dr_pc~0 1))) (.cse1 (not (= ~p_dw_i~0 1)))) (and (or (= |old(~p_dw_st~0)| ~p_dw_st~0) .cse0 .cse1 (not (<= 1 ~p_dw_pc~0))) (or .cse0 (= ~p_dw_st~0 0) .cse1 (not (= |old(~p_dw_st~0)| 0))))) [2022-12-14 15:19:43,740 INFO L895 garLoopResultBuilder]: At program point L387-2(lines 387 391) the Hoare annotation is: (or (not (<= ~c_dr_pc~0 1)) (= ~p_dw_st~0 0) (not (= ~p_dw_i~0 1)) (not (= |old(~p_dw_st~0)| 0))) [2022-12-14 15:19:43,741 INFO L899 garLoopResultBuilder]: For program point L385-1(line 385) no Hoare annotation was computed. [2022-12-14 15:19:43,741 INFO L899 garLoopResultBuilder]: For program point activate_threadsEXIT(lines 379 403) no Hoare annotation was computed. [2022-12-14 15:19:43,741 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 379 403) the Hoare annotation is: (let ((.cse0 (not (<= ~c_dr_pc~0 1))) (.cse1 (not (= ~p_dw_i~0 1)))) (and (or (= |old(~p_dw_st~0)| ~p_dw_st~0) .cse0 .cse1 (not (<= 1 ~p_dw_pc~0))) (or .cse0 (= ~p_dw_st~0 0) .cse1 (not (= |old(~p_dw_st~0)| 0))))) [2022-12-14 15:19:43,741 INFO L899 garLoopResultBuilder]: For program point L393(line 393) no Hoare annotation was computed. [2022-12-14 15:19:43,741 INFO L899 garLoopResultBuilder]: For program point exists_runnable_threadEXIT(lines 287 306) no Hoare annotation was computed. [2022-12-14 15:19:43,741 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 287 306) the Hoare annotation is: true [2022-12-14 15:19:43,741 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 101) no Hoare annotation was computed. [2022-12-14 15:19:43,741 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 104) no Hoare annotation was computed. [2022-12-14 15:19:43,742 INFO L899 garLoopResultBuilder]: For program point L95-2(lines 94 118) no Hoare annotation was computed. [2022-12-14 15:19:43,742 INFO L902 garLoopResultBuilder]: At program point L116(lines 94 118) the Hoare annotation is: true [2022-12-14 15:19:43,742 INFO L899 garLoopResultBuilder]: For program point L106(lines 106 111) no Hoare annotation was computed. [2022-12-14 15:19:43,742 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 91 119) the Hoare annotation is: true [2022-12-14 15:19:43,742 INFO L899 garLoopResultBuilder]: For program point L105-1(lines 105 114) no Hoare annotation was computed. [2022-12-14 15:19:43,742 INFO L899 garLoopResultBuilder]: For program point is_do_read_c_triggeredEXIT(lines 91 119) no Hoare annotation was computed. [2022-12-14 15:19:43,742 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 307 324) the Hoare annotation is: true [2022-12-14 15:19:43,742 INFO L899 garLoopResultBuilder]: For program point fire_delta_eventsEXIT(lines 307 324) no Hoare annotation was computed. [2022-12-14 15:19:43,742 INFO L899 garLoopResultBuilder]: For program point update_channelsEXIT(lines 254 268) no Hoare annotation was computed. [2022-12-14 15:19:43,742 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 254 268) the Hoare annotation is: true [2022-12-14 15:19:43,742 INFO L899 garLoopResultBuilder]: For program point reset_delta_eventsEXIT(lines 325 342) no Hoare annotation was computed. [2022-12-14 15:19:43,743 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 325 342) the Hoare annotation is: true [2022-12-14 15:19:43,743 INFO L895 garLoopResultBuilder]: At program point L514-1(line 514) the Hoare annotation is: (let ((.cse0 (<= ~c_dr_pc~0 1)) (.cse1 (= ~p_dw_i~0 1))) (or (and .cse0 (= ~p_dw_st~0 0) .cse1) (and .cse0 (<= 1 ~p_dw_pc~0) .cse1))) [2022-12-14 15:19:43,743 INFO L899 garLoopResultBuilder]: For program point L415(lines 415 419) no Hoare annotation was computed. [2022-12-14 15:19:43,743 INFO L899 garLoopResultBuilder]: For program point L415-1(lines 410 450) no Hoare annotation was computed. [2022-12-14 15:19:43,743 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 246) no Hoare annotation was computed. [2022-12-14 15:19:43,743 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 160) no Hoare annotation was computed. [2022-12-14 15:19:43,743 INFO L895 garLoopResultBuilder]: At program point do_write_p_returnLabel#1(lines 145 193) the Hoare annotation is: (and (<= ~c_dr_pc~0 1) (<= 1 ~p_dw_pc~0) (= ~p_dw_i~0 1)) [2022-12-14 15:19:43,743 INFO L902 garLoopResultBuilder]: At program point start_simulation_returnLabel#1(lines 476 534) the Hoare annotation is: true [2022-12-14 15:19:43,743 INFO L895 garLoopResultBuilder]: At program point L499(line 499) the Hoare annotation is: (let ((.cse0 (<= ~c_dr_pc~0 1)) (.cse1 (= ~p_dw_i~0 1))) (or (and .cse0 (= ~p_dw_st~0 0) .cse1) (and .cse0 (<= 1 ~p_dw_pc~0) .cse1))) [2022-12-14 15:19:43,744 INFO L899 garLoopResultBuilder]: For program point L499-1(line 499) no Hoare annotation was computed. [2022-12-14 15:19:43,744 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 241) no Hoare annotation was computed. [2022-12-14 15:19:43,744 INFO L895 garLoopResultBuilder]: At program point L202(lines 202 206) the Hoare annotation is: (let ((.cse0 (<= ~c_dr_pc~0 1)) (.cse1 (= ~p_dw_i~0 1))) (or (and .cse0 (= ~p_dw_st~0 0) .cse1) (and .cse0 (<= 1 ~p_dw_pc~0) .cse1))) [2022-12-14 15:19:43,744 INFO L895 garLoopResultBuilder]: At program point L484(line 484) the Hoare annotation is: (and (<= ~p_dw_pc~0 0) (= ~p_dw_st~0 0) (<= 2 ~slow_clk_edge~0) (= ~p_dw_i~0 1) (<= ~c_dr_pc~0 0)) [2022-12-14 15:19:43,744 INFO L895 garLoopResultBuilder]: At program point L484-1(line 484) the Hoare annotation is: (and (<= ~p_dw_pc~0 0) (= ~p_dw_st~0 0) (<= 2 ~slow_clk_edge~0) (= ~p_dw_i~0 1) (<= ~c_dr_pc~0 0)) [2022-12-14 15:19:43,744 INFO L895 garLoopResultBuilder]: At program point L435(lines 410 450) the Hoare annotation is: (let ((.cse0 (<= ~c_dr_pc~0 1)) (.cse1 (= ~p_dw_i~0 1))) (or (and .cse0 (= ~p_dw_st~0 0) .cse1) (and .cse0 (<= 1 ~p_dw_pc~0) .cse1))) [2022-12-14 15:19:43,744 INFO L895 garLoopResultBuilder]: At program point L171(lines 171 179) the Hoare annotation is: (and (<= ~c_dr_pc~0 1) (<= 1 ~p_dw_pc~0) (= ~p_dw_i~0 1)) [2022-12-14 15:19:43,744 INFO L899 garLoopResultBuilder]: For program point L155(lines 155 159) no Hoare annotation was computed. [2022-12-14 15:19:43,744 INFO L895 garLoopResultBuilder]: At program point L486(line 486) the Hoare annotation is: (and (<= ~p_dw_pc~0 0) (= ~p_dw_st~0 0) (<= 2 ~slow_clk_edge~0) (= ~p_dw_i~0 1) (<= ~c_dr_pc~0 0)) [2022-12-14 15:19:43,745 INFO L895 garLoopResultBuilder]: At program point L486-1(line 486) the Hoare annotation is: (and (<= ~p_dw_pc~0 0) (= ~p_dw_st~0 0) (<= 2 ~slow_clk_edge~0) (= ~p_dw_i~0 1) (<= ~c_dr_pc~0 0)) [2022-12-14 15:19:43,745 INFO L899 garLoopResultBuilder]: For program point L420(lines 410 450) no Hoare annotation was computed. [2022-12-14 15:19:43,745 INFO L895 garLoopResultBuilder]: At program point L503(line 503) the Hoare annotation is: (let ((.cse0 (<= ~c_dr_pc~0 1)) (.cse1 (= ~p_dw_i~0 1))) (or (and .cse0 (= ~p_dw_st~0 0) .cse1) (and .cse0 (<= 1 ~p_dw_pc~0) .cse1))) [2022-12-14 15:19:43,745 INFO L895 garLoopResultBuilder]: At program point L503-1(line 503) the Hoare annotation is: (let ((.cse0 (<= ~c_dr_pc~0 1)) (.cse1 (= ~p_dw_i~0 1))) (or (and .cse0 (= ~p_dw_st~0 0) .cse1) (and .cse0 (<= 1 ~p_dw_pc~0) .cse1))) [2022-12-14 15:19:43,745 INFO L895 garLoopResultBuilder]: At program point L239(line 239) the Hoare annotation is: false [2022-12-14 15:19:43,745 INFO L895 garLoopResultBuilder]: At program point L487(line 487) the Hoare annotation is: (and (<= ~p_dw_pc~0 0) (= ~p_dw_st~0 0) (<= 2 ~slow_clk_edge~0) (= ~p_dw_i~0 1) (<= ~c_dr_pc~0 0)) [2022-12-14 15:19:43,745 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 15:19:43,745 INFO L895 garLoopResultBuilder]: At program point L504(line 504) the Hoare annotation is: (let ((.cse0 (<= ~c_dr_pc~0 1)) (.cse1 (= ~p_dw_i~0 1))) (or (and .cse0 (= ~p_dw_st~0 0) .cse1) (and .cse0 (<= 1 ~p_dw_pc~0) .cse1))) [2022-12-14 15:19:43,745 INFO L895 garLoopResultBuilder]: At program point L505(line 505) the Hoare annotation is: (let ((.cse0 (<= ~c_dr_pc~0 1)) (.cse1 (= ~p_dw_i~0 1))) (or (and .cse0 (= ~p_dw_st~0 0) .cse1) (and .cse0 (<= 1 ~p_dw_pc~0) .cse1))) [2022-12-14 15:19:43,745 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 446) no Hoare annotation was computed. [2022-12-14 15:19:43,745 INFO L899 garLoopResultBuilder]: For program point L523(lines 523 527) no Hoare annotation was computed. [2022-12-14 15:19:43,745 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 431) no Hoare annotation was computed. [2022-12-14 15:19:43,746 INFO L895 garLoopResultBuilder]: At program point $Ultimate##36(lines 171 179) the Hoare annotation is: (and (<= ~c_dr_pc~0 1) (<= 1 ~p_dw_pc~0) (= ~p_dw_i~0 1)) [2022-12-14 15:19:43,746 INFO L895 garLoopResultBuilder]: At program point L491-1(lines 491 528) the Hoare annotation is: (let ((.cse0 (<= ~c_dr_pc~0 1)) (.cse1 (= ~p_dw_i~0 1))) (or (and .cse0 (= ~p_dw_st~0 0) .cse1) (and .cse0 (<= 1 ~p_dw_pc~0) .cse1))) [2022-12-14 15:19:43,746 INFO L899 garLoopResultBuilder]: For program point L508(line 508) no Hoare annotation was computed. [2022-12-14 15:19:43,746 INFO L895 garLoopResultBuilder]: At program point L244(line 244) the Hoare annotation is: false [2022-12-14 15:19:43,746 INFO L895 garLoopResultBuilder]: At program point L244-1(lines 210 247) the Hoare annotation is: (let ((.cse0 (<= ~c_dr_pc~0 1)) (.cse1 (= ~p_dw_i~0 1))) (or (and .cse0 (= ~p_dw_st~0 0) .cse1) (and .cse0 (<= 1 ~p_dw_pc~0) .cse1))) [2022-12-14 15:19:43,746 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2022-12-14 15:19:43,746 INFO L895 garLoopResultBuilder]: At program point eval_returnLabel#1(lines 404 456) the Hoare annotation is: (let ((.cse0 (<= ~c_dr_pc~0 1)) (.cse1 (= ~p_dw_i~0 1))) (or (and .cse0 (= ~p_dw_st~0 0) .cse1) (and .cse0 (<= 1 ~p_dw_pc~0) .cse1))) [2022-12-14 15:19:43,746 INFO L895 garLoopResultBuilder]: At program point L510(lines 510 519) the Hoare annotation is: (let ((.cse0 (<= ~c_dr_pc~0 1)) (.cse1 (= ~p_dw_i~0 1))) (or (and .cse0 (= ~p_dw_st~0 0) .cse1) (and .cse0 (<= 1 ~p_dw_pc~0) .cse1))) [2022-12-14 15:19:43,746 INFO L899 garLoopResultBuilder]: For program point L510-2(lines 510 519) no Hoare annotation was computed. [2022-12-14 15:19:43,746 INFO L895 garLoopResultBuilder]: At program point L411(line 411) the Hoare annotation is: (let ((.cse0 (<= ~c_dr_pc~0 1)) (.cse1 (= ~p_dw_i~0 1))) (or (and .cse0 (= ~p_dw_st~0 0) .cse1) (and .cse0 (<= 1 ~p_dw_pc~0) .cse1))) [2022-12-14 15:19:43,747 INFO L895 garLoopResultBuilder]: At program point L164-1(lines 164 187) the Hoare annotation is: (and (<= ~c_dr_pc~0 1) (= ~p_dw_i~0 1)) [2022-12-14 15:19:43,747 INFO L899 garLoopResultBuilder]: For program point L413(line 413) no Hoare annotation was computed. [2022-12-14 15:19:43,747 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 161) no Hoare annotation was computed. [2022-12-14 15:19:43,747 INFO L895 garLoopResultBuilder]: At program point L463(line 463) the Hoare annotation is: (let ((.cse0 (<= ~c_dr_pc~0 1)) (.cse1 (= ~p_dw_i~0 1))) (or (and .cse0 (= ~p_dw_st~0 0) .cse1) (and .cse0 (<= 1 ~p_dw_pc~0) .cse1))) [2022-12-14 15:19:43,747 INFO L895 garLoopResultBuilder]: At program point L463-1(line 463) the Hoare annotation is: (let ((.cse0 (<= ~c_dr_pc~0 1)) (.cse1 (= ~p_dw_i~0 1))) (or (and .cse0 (= ~p_dw_st~0 0) .cse1) (and .cse0 (<= 1 ~p_dw_pc~0) .cse1))) [2022-12-14 15:19:43,747 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 207) no Hoare annotation was computed. [2022-12-14 15:19:43,747 INFO L895 garLoopResultBuilder]: At program point L514(line 514) the Hoare annotation is: (let ((.cse0 (<= ~c_dr_pc~0 1)) (.cse1 (= ~p_dw_i~0 1))) (or (and .cse0 (= ~p_dw_st~0 0) .cse1) (and .cse0 (<= 1 ~p_dw_pc~0) .cse1))) [2022-12-14 15:19:43,747 INFO L899 garLoopResultBuilder]: For program point L66-2(lines 65 89) no Hoare annotation was computed. [2022-12-14 15:19:43,747 INFO L895 garLoopResultBuilder]: At program point L87(lines 65 89) the Hoare annotation is: (or (not (= ~p_dw_st~0 0)) (not (<= ~p_dw_pc~0 0)) (not (<= ~c_dr_pc~0 1)) (not (= ~p_dw_i~0 1)) (= is_do_write_p_triggered_~__retres1~0 0)) [2022-12-14 15:19:43,747 INFO L899 garLoopResultBuilder]: For program point is_do_write_p_triggeredEXIT(lines 62 90) no Hoare annotation was computed. [2022-12-14 15:19:43,747 INFO L899 garLoopResultBuilder]: For program point L77(lines 77 82) no Hoare annotation was computed. [2022-12-14 15:19:43,747 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 76 85) no Hoare annotation was computed. [2022-12-14 15:19:43,748 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 62 90) the Hoare annotation is: true [2022-12-14 15:19:43,748 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 72) no Hoare annotation was computed. [2022-12-14 15:19:43,748 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 75) no Hoare annotation was computed. [2022-12-14 15:19:43,748 INFO L899 garLoopResultBuilder]: For program point errorEXIT(lines 15 22) no Hoare annotation was computed. [2022-12-14 15:19:43,748 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 15 22) the Hoare annotation is: true [2022-12-14 15:19:43,748 INFO L899 garLoopResultBuilder]: For program point errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2022-12-14 15:19:43,750 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-14 15:19:43,752 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:19:43,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:19:43 BoogieIcfgContainer [2022-12-14 15:19:43,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:19:43,764 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:19:43,764 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:19:43,764 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:19:43,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:19:38" (3/4) ... [2022-12-14 15:19:43,767 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 15:19:43,771 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure activate_threads [2022-12-14 15:19:43,771 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure exists_runnable_thread [2022-12-14 15:19:43,771 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure is_do_read_c_triggered [2022-12-14 15:19:43,771 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fire_delta_events [2022-12-14 15:19:43,771 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure update_channels [2022-12-14 15:19:43,771 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reset_delta_events [2022-12-14 15:19:43,771 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure is_do_write_p_triggered [2022-12-14 15:19:43,772 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure error [2022-12-14 15:19:43,776 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 45 nodes and edges [2022-12-14 15:19:43,776 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-12-14 15:19:43,776 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 15:19:43,777 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 15:19:43,815 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 15:19:43,815 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:19:43,816 INFO L158 Benchmark]: Toolchain (without parser) took 6275.67ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 115.7MB in the beginning and 57.5MB in the end (delta: 58.1MB). Peak memory consumption was 91.5MB. Max. memory is 16.1GB. [2022-12-14 15:19:43,816 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory was 86.3MB in the beginning and 86.2MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:19:43,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.96ms. Allocated memory is still 148.9MB. Free memory was 115.2MB in the beginning and 101.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 15:19:43,817 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.79ms. Allocated memory is still 148.9MB. Free memory was 101.9MB in the beginning and 99.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:19:43,817 INFO L158 Benchmark]: Boogie Preprocessor took 19.67ms. Allocated memory is still 148.9MB. Free memory was 99.9MB in the beginning and 97.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:19:43,817 INFO L158 Benchmark]: RCFGBuilder took 464.11ms. Allocated memory is still 148.9MB. Free memory was 97.9MB in the beginning and 119.2MB in the end (delta: -21.3MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2022-12-14 15:19:43,818 INFO L158 Benchmark]: TraceAbstraction took 5490.65ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 118.4MB in the beginning and 63.9MB in the end (delta: 54.5MB). Peak memory consumption was 108.8MB. Max. memory is 16.1GB. [2022-12-14 15:19:43,818 INFO L158 Benchmark]: Witness Printer took 51.49ms. Allocated memory is still 180.4MB. Free memory was 63.9MB in the beginning and 57.5MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 15:19:43,820 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory was 86.3MB in the beginning and 86.2MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.96ms. Allocated memory is still 148.9MB. Free memory was 115.2MB in the beginning and 101.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.79ms. Allocated memory is still 148.9MB. Free memory was 101.9MB in the beginning and 99.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.67ms. Allocated memory is still 148.9MB. Free memory was 99.9MB in the beginning and 97.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 464.11ms. Allocated memory is still 148.9MB. Free memory was 97.9MB in the beginning and 119.2MB in the end (delta: -21.3MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5490.65ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 118.4MB in the beginning and 63.9MB in the end (delta: 54.5MB). Peak memory consumption was 108.8MB. Max. memory is 16.1GB. * Witness Printer took 51.49ms. Allocated memory is still 180.4MB. Free memory was 63.9MB in the beginning and 57.5MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 19]: 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 CFG has 9 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 730 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 722 mSDsluCounter, 1249 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 588 mSDsCounter, 103 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 793 IncrementalHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 103 mSolverCounterUnsat, 661 mSDtfsCounter, 793 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 275 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=776occurred in iteration=5, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 121 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 41 LocationsWithAnnotation, 533 PreInvPairs, 769 NumberOfFragments, 567 HoareAnnotationTreeSize, 533 FomulaSimplifications, 549 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 41 FomulaSimplificationsInter, 10879 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 623 NumberOfCodeBlocks, 623 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 615 ConstructedInterpolants, 0 QuantifiedInterpolants, 1139 SizeOfPredicates, 0 NumberOfNonLiveVariables, 784 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 233/265 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 1 specifications checked. All of them hold - InvariantResult [Line: 404]: Loop Invariant Derived loop invariant: ((c_dr_pc <= 1 && p_dw_st == 0) && p_dw_i == 1) || ((c_dr_pc <= 1 && 1 <= p_dw_pc) && p_dw_i == 1) - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: ((c_dr_pc <= 1 && p_dw_st == 0) && p_dw_i == 1) || ((c_dr_pc <= 1 && 1 <= p_dw_pc) && p_dw_i == 1) - InvariantResult [Line: 484]: Loop Invariant Derived loop invariant: (((p_dw_pc <= 0 && p_dw_st == 0) && 2 <= slow_clk_edge) && p_dw_i == 1) && c_dr_pc <= 0 - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: ((c_dr_pc <= 1 && p_dw_st == 0) && p_dw_i == 1) || ((c_dr_pc <= 1 && 1 <= p_dw_pc) && p_dw_i == 1) - InvariantResult [Line: 476]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 171]: Loop Invariant Derived loop invariant: (c_dr_pc <= 1 && 1 <= p_dw_pc) && p_dw_i == 1 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: (((!(p_dw_st == 0) || !(p_dw_pc <= 0)) || !(c_dr_pc <= 1)) || !(p_dw_i == 1)) || __retres1 == 0 - InvariantResult [Line: 171]: Loop Invariant Derived loop invariant: (c_dr_pc <= 1 && 1 <= p_dw_pc) && p_dw_i == 1 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: ((c_dr_pc <= 1 && p_dw_st == 0) && p_dw_i == 1) || ((c_dr_pc <= 1 && 1 <= p_dw_pc) && p_dw_i == 1) - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 210]: Loop Invariant Derived loop invariant: ((c_dr_pc <= 1 && p_dw_st == 0) && p_dw_i == 1) || ((c_dr_pc <= 1 && 1 <= p_dw_pc) && p_dw_i == 1) - InvariantResult [Line: 254]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 463]: Loop Invariant Derived loop invariant: ((c_dr_pc <= 1 && p_dw_st == 0) && p_dw_i == 1) || ((c_dr_pc <= 1 && 1 <= p_dw_pc) && p_dw_i == 1) - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: ((c_dr_pc <= 1 && p_dw_st == 0) && p_dw_i == 1) || ((c_dr_pc <= 1 && 1 <= p_dw_pc) && p_dw_i == 1) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: c_dr_pc <= 1 && p_dw_i == 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 145]: Loop Invariant Derived loop invariant: (c_dr_pc <= 1 && 1 <= p_dw_pc) && p_dw_i == 1 - InvariantResult [Line: 287]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 510]: Loop Invariant Derived loop invariant: ((c_dr_pc <= 1 && p_dw_st == 0) && p_dw_i == 1) || ((c_dr_pc <= 1 && 1 <= p_dw_pc) && p_dw_i == 1) RESULT: Ultimate proved your program to be correct! [2022-12-14 15:19:43,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d86e212-4204-4ea4-8b48-373eb39f464c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE