./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 dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/bin/utaipan-G1rejxKTta --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-dbf71c6-m [2022-10-17 17:22:02,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:22:02,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:22:02,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:22:02,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:22:02,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:22:02,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:22:02,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:22:02,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:22:02,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:22:02,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:22:02,646 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:22:02,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:22:02,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:22:02,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:22:02,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:22:02,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:22:02,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:22:02,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:22:02,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:22:02,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:22:02,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:22:02,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:22:02,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:22:02,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:22:02,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:22:02,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:22:02,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:22:02,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:22:02,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:22:02,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:22:02,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:22:02,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:22:02,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:22:02,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:22:02,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:22:02,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:22:02,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:22:02,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:22:02,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:22:02,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:22:02,704 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-10-17 17:22:02,761 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:22:02,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:22:02,762 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:22:02,762 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:22:02,763 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:22:02,763 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:22:02,763 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:22:02,764 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:22:02,764 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:22:02,764 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:22:02,765 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:22:02,765 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:22:02,766 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:22:02,766 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:22:02,766 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:22:02,766 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:22:02,767 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:22:02,767 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:22:02,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:22:02,768 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:22:02,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:22:02,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:22:02,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:22:02,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:22:02,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:22:02,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:22:02,774 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:22:02,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:22:02,774 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:22:02,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:22:02,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:22:02,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:22:02,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:22:02,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:22:02,776 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:22:02,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:22:02,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:22:02,776 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:22:02,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:22:02,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:22:02,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:22:02,778 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_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 677126e8d6773c92cc337bfe0a3ec155f49f784424155f33a8c9c24ee0a42113 [2022-10-17 17:22:03,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:22:03,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:22:03,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:22:03,096 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:22:03,097 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:22:03,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2022-10-17 17:22:03,180 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/bin/utaipan-G1rejxKTta/data/b48a8f2c6/f399570cafb34fc0b927595b7dd23384/FLAG150d47abb [2022-10-17 17:22:03,799 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:22:03,800 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2022-10-17 17:22:03,818 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/bin/utaipan-G1rejxKTta/data/b48a8f2c6/f399570cafb34fc0b927595b7dd23384/FLAG150d47abb [2022-10-17 17:22:04,114 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/bin/utaipan-G1rejxKTta/data/b48a8f2c6/f399570cafb34fc0b927595b7dd23384 [2022-10-17 17:22:04,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:22:04,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:22:04,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:22:04,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:22:04,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:22:04,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:22:04" (1/1) ... [2022-10-17 17:22:04,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d082b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:04, skipping insertion in model container [2022-10-17 17:22:04,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:22:04" (1/1) ... [2022-10-17 17:22:04,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:22:04,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:22:04,396 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[640,653] [2022-10-17 17:22:04,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:22:04,463 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:22:04,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[640,653] [2022-10-17 17:22:04,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:22:04,525 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:22:04,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:04 WrapperNode [2022-10-17 17:22:04,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:22:04,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:22:04,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:22:04,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:22:04,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:04" (1/1) ... [2022-10-17 17:22:04,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:04" (1/1) ... [2022-10-17 17:22:04,578 INFO L138 Inliner]: procedures = 31, calls = 35, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 225 [2022-10-17 17:22:04,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:22:04,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:22:04,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:22:04,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:22:04,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:04" (1/1) ... [2022-10-17 17:22:04,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:04" (1/1) ... [2022-10-17 17:22:04,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:04" (1/1) ... [2022-10-17 17:22:04,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:04" (1/1) ... [2022-10-17 17:22:04,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:04" (1/1) ... [2022-10-17 17:22:04,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:04" (1/1) ... [2022-10-17 17:22:04,648 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:04" (1/1) ... [2022-10-17 17:22:04,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:04" (1/1) ... [2022-10-17 17:22:04,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:22:04,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:22:04,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:22:04,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:22:04,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:04" (1/1) ... [2022-10-17 17:22:04,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:22:04,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:22:04,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:22:04,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:22:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:22:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-10-17 17:22:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-10-17 17:22:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2022-10-17 17:22:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2022-10-17 17:22:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-10-17 17:22:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-10-17 17:22:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-10-17 17:22:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-10-17 17:22:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-10-17 17:22:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-10-17 17:22:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-10-17 17:22:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-10-17 17:22:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:22:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-10-17 17:22:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-10-17 17:22:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:22:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:22:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2022-10-17 17:22:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2022-10-17 17:22:04,831 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:22:04,834 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:22:05,359 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !(1 == ~q_free~0); [2022-10-17 17:22:05,359 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; [2022-10-17 17:22:05,393 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:22:05,587 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:22:05,588 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-17 17:22:05,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:22:05 BoogieIcfgContainer [2022-10-17 17:22:05,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:22:05,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:22:05,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:22:05,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:22:05,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:22:04" (1/3) ... [2022-10-17 17:22:05,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ae8ad26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:22:05, skipping insertion in model container [2022-10-17 17:22:05,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:04" (2/3) ... [2022-10-17 17:22:05,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ae8ad26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:22:05, skipping insertion in model container [2022-10-17 17:22:05,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:22:05" (3/3) ... [2022-10-17 17:22:05,602 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2022-10-17 17:22:05,624 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:22:05,624 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:22:05,697 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:22:05,715 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;@62c2fc68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:22:05,715 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 17:22:05,722 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) [2022-10-17 17:22:05,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-17 17:22:05,735 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:22:05,736 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] [2022-10-17 17:22:05,737 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:22:05,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:22:05,743 INFO L85 PathProgramCache]: Analyzing trace with hash -921868616, now seen corresponding path program 1 times [2022-10-17 17:22:05,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:22:05,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895769901] [2022-10-17 17:22:05,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:05,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:22:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:22:06,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:22:06,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:22:06,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895769901] [2022-10-17 17:22:06,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895769901] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:22:06,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:22:06,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 17:22:06,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602333543] [2022-10-17 17:22:06,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:22:06,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 17:22:06,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:22:06,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 17:22:06,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:22:06,353 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) [2022-10-17 17:22:06,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:22:06,789 INFO L93 Difference]: Finished difference Result 285 states and 409 transitions. [2022-10-17 17:22:06,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 17:22:06,793 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 [2022-10-17 17:22:06,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:22:06,820 INFO L225 Difference]: With dead ends: 285 [2022-10-17 17:22:06,820 INFO L226 Difference]: Without dead ends: 205 [2022-10-17 17:22:06,827 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 [2022-10-17 17:22:06,832 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 167 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 17:22:06,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 278 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 17:22:06,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-10-17 17:22:06,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 194. [2022-10-17 17:22:06,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 136 states have (on average 1.3676470588235294) internal successors, (186), 138 states have internal predecessors, (186), 36 states have call successors, (36), 22 states have call predecessors, (36), 21 states have return successors, (37), 34 states have call predecessors, (37), 34 states have call successors, (37) [2022-10-17 17:22:06,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 259 transitions. [2022-10-17 17:22:06,920 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 259 transitions. Word has length 43 [2022-10-17 17:22:06,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:22:06,921 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 259 transitions. [2022-10-17 17:22:06,921 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) [2022-10-17 17:22:06,921 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 259 transitions. [2022-10-17 17:22:06,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-17 17:22:06,924 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:22:06,924 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] [2022-10-17 17:22:06,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:22:06,925 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:22:06,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:22:06,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1441888284, now seen corresponding path program 1 times [2022-10-17 17:22:06,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:22:06,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194123073] [2022-10-17 17:22:06,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:06,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:22:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:22:07,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:22:07,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:22:07,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194123073] [2022-10-17 17:22:07,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194123073] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:22:07,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:22:07,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 17:22:07,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346594544] [2022-10-17 17:22:07,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:22:07,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 17:22:07,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:22:07,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 17:22:07,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 17:22:07,111 INFO L87 Difference]: Start difference. First operand 194 states and 259 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2022-10-17 17:22:07,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:22:07,844 INFO L93 Difference]: Finished difference Result 731 states and 982 transitions. [2022-10-17 17:22:07,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 17:22:07,845 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 44 [2022-10-17 17:22:07,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:22:07,849 INFO L225 Difference]: With dead ends: 731 [2022-10-17 17:22:07,850 INFO L226 Difference]: Without dead ends: 265 [2022-10-17 17:22:07,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-10-17 17:22:07,856 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 506 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-17 17:22:07,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 592 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-17 17:22:07,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-10-17 17:22:07,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 180. [2022-10-17 17:22:07,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 122 states have (on average 1.2540983606557377) internal successors, (153), 124 states have internal predecessors, (153), 36 states have call successors, (36), 22 states have call predecessors, (36), 21 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-10-17 17:22:07,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 223 transitions. [2022-10-17 17:22:07,892 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 223 transitions. Word has length 44 [2022-10-17 17:22:07,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:22:07,893 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 223 transitions. [2022-10-17 17:22:07,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2022-10-17 17:22:07,893 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 223 transitions. [2022-10-17 17:22:07,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-17 17:22:07,895 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:22:07,895 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, 1] [2022-10-17 17:22:07,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 17:22:07,896 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:22:07,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:22:07,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1727576631, now seen corresponding path program 1 times [2022-10-17 17:22:07,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:22:07,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62882140] [2022-10-17 17:22:07,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:07,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:22:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:22:08,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:22:08,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:22:08,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62882140] [2022-10-17 17:22:08,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62882140] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:22:08,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:22:08,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 17:22:08,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673305223] [2022-10-17 17:22:08,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:22:08,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 17:22:08,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:22:08,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 17:22:08,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-17 17:22:08,215 INFO L87 Difference]: Start difference. First operand 180 states and 223 transitions. Second operand has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-17 17:22:08,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:22:08,671 INFO L93 Difference]: Finished difference Result 482 states and 591 transitions. [2022-10-17 17:22:08,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-17 17:22:08,672 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 45 [2022-10-17 17:22:08,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:22:08,675 INFO L225 Difference]: With dead ends: 482 [2022-10-17 17:22:08,675 INFO L226 Difference]: Without dead ends: 308 [2022-10-17 17:22:08,677 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 [2022-10-17 17:22:08,678 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 205 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 17:22:08,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 292 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 17:22:08,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-10-17 17:22:08,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 282. [2022-10-17 17:22:08,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 190 states have (on average 1.236842105263158) internal successors, (235), 192 states have internal predecessors, (235), 56 states have call successors, (56), 36 states have call predecessors, (56), 35 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-10-17 17:22:08,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 345 transitions. [2022-10-17 17:22:08,743 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 345 transitions. Word has length 45 [2022-10-17 17:22:08,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:22:08,744 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 345 transitions. [2022-10-17 17:22:08,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-17 17:22:08,745 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 345 transitions. [2022-10-17 17:22:08,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-17 17:22:08,752 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:22:08,752 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, 1, 1] [2022-10-17 17:22:08,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 17:22:08,752 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:22:08,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:22:08,755 INFO L85 PathProgramCache]: Analyzing trace with hash 851206718, now seen corresponding path program 1 times [2022-10-17 17:22:08,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:22:08,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695388931] [2022-10-17 17:22:08,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:08,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:22:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:22:08,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:22:08,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:22:08,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695388931] [2022-10-17 17:22:08,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695388931] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:22:08,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:22:08,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:22:08,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589874640] [2022-10-17 17:22:08,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:22:08,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:22:08,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:22:08,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:22:08,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:22:08,843 INFO L87 Difference]: Start difference. First operand 282 states and 345 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-17 17:22:08,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:22:08,910 INFO L93 Difference]: Finished difference Result 547 states and 681 transitions. [2022-10-17 17:22:08,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:22:08,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 46 [2022-10-17 17:22:08,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:22:08,918 INFO L225 Difference]: With dead ends: 547 [2022-10-17 17:22:08,918 INFO L226 Difference]: Without dead ends: 0 [2022-10-17 17:22:08,919 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 [2022-10-17 17:22:08,931 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 71 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 17:22:08,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 69 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 17:22:08,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-17 17:22:08,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-17 17:22:08,935 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) [2022-10-17 17:22:08,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-17 17:22:08,937 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2022-10-17 17:22:08,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:22:08,939 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 17:22:08,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-17 17:22:08,940 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-17 17:22:08,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 17:22:08,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 17:22:08,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 17:22:08,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-17 17:22:10,184 INFO L895 garLoopResultBuilder]: At program point L385(line 385) the Hoare annotation is: (or (= |old(~p_dw_st~0)| ~p_dw_st~0) (not (= ~c_dr_pc~0 0)) (not (= ~p_dw_i~0 1))) [2022-10-17 17:22:10,185 INFO L895 garLoopResultBuilder]: At program point L387-2(lines 387 391) the Hoare annotation is: (or (not (= ~c_dr_pc~0 0)) (= ~p_dw_st~0 0) (not (= ~p_dw_i~0 1)) (not (= |old(~p_dw_st~0)| 0))) [2022-10-17 17:22:10,185 INFO L899 garLoopResultBuilder]: For program point L385-1(line 385) no Hoare annotation was computed. [2022-10-17 17:22:10,185 INFO L895 garLoopResultBuilder]: At program point activate_threadsENTRY(lines 379 403) the Hoare annotation is: (or (= |old(~p_dw_st~0)| ~p_dw_st~0) (not (= ~c_dr_pc~0 0)) (not (= ~p_dw_i~0 1))) [2022-10-17 17:22:10,185 INFO L899 garLoopResultBuilder]: For program point activate_threadsEXIT(lines 379 403) no Hoare annotation was computed. [2022-10-17 17:22:10,185 INFO L899 garLoopResultBuilder]: For program point L393(line 393) no Hoare annotation was computed. [2022-10-17 17:22:10,185 INFO L899 garLoopResultBuilder]: For program point exists_runnable_threadEXIT(lines 287 306) no Hoare annotation was computed. [2022-10-17 17:22:10,186 INFO L902 garLoopResultBuilder]: At program point exists_runnable_threadENTRY(lines 287 306) the Hoare annotation is: true [2022-10-17 17:22:10,186 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 101) no Hoare annotation was computed. [2022-10-17 17:22:10,186 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 104) no Hoare annotation was computed. [2022-10-17 17:22:10,186 INFO L899 garLoopResultBuilder]: For program point L95-2(lines 94 118) no Hoare annotation was computed. [2022-10-17 17:22:10,186 INFO L902 garLoopResultBuilder]: At program point is_do_read_c_triggeredENTRY(lines 91 119) the Hoare annotation is: true [2022-10-17 17:22:10,186 INFO L902 garLoopResultBuilder]: At program point L116(lines 94 118) the Hoare annotation is: true [2022-10-17 17:22:10,187 INFO L899 garLoopResultBuilder]: For program point L106(lines 106 111) no Hoare annotation was computed. [2022-10-17 17:22:10,187 INFO L899 garLoopResultBuilder]: For program point L105-1(lines 105 114) no Hoare annotation was computed. [2022-10-17 17:22:10,187 INFO L899 garLoopResultBuilder]: For program point is_do_read_c_triggeredEXIT(lines 91 119) no Hoare annotation was computed. [2022-10-17 17:22:10,187 INFO L902 garLoopResultBuilder]: At program point fire_delta_eventsENTRY(lines 307 324) the Hoare annotation is: true [2022-10-17 17:22:10,187 INFO L899 garLoopResultBuilder]: For program point fire_delta_eventsEXIT(lines 307 324) no Hoare annotation was computed. [2022-10-17 17:22:10,187 INFO L902 garLoopResultBuilder]: At program point update_channelsENTRY(lines 254 268) the Hoare annotation is: true [2022-10-17 17:22:10,188 INFO L899 garLoopResultBuilder]: For program point update_channelsEXIT(lines 254 268) no Hoare annotation was computed. [2022-10-17 17:22:10,188 INFO L899 garLoopResultBuilder]: For program point reset_delta_eventsEXIT(lines 325 342) no Hoare annotation was computed. [2022-10-17 17:22:10,188 INFO L902 garLoopResultBuilder]: At program point reset_delta_eventsENTRY(lines 325 342) the Hoare annotation is: true [2022-10-17 17:22:10,188 INFO L895 garLoopResultBuilder]: At program point L514-1(line 514) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2022-10-17 17:22:10,188 INFO L899 garLoopResultBuilder]: For program point L415(lines 415 419) no Hoare annotation was computed. [2022-10-17 17:22:10,188 INFO L899 garLoopResultBuilder]: For program point L415-1(lines 410 450) no Hoare annotation was computed. [2022-10-17 17:22:10,188 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 246) no Hoare annotation was computed. [2022-10-17 17:22:10,189 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-10-17 17:22:10,189 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 160) no Hoare annotation was computed. [2022-10-17 17:22:10,189 INFO L895 garLoopResultBuilder]: At program point L499(line 499) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2022-10-17 17:22:10,189 INFO L899 garLoopResultBuilder]: For program point L499-1(line 499) no Hoare annotation was computed. [2022-10-17 17:22:10,193 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 241) no Hoare annotation was computed. [2022-10-17 17:22:10,195 INFO L895 garLoopResultBuilder]: At program point L202(lines 202 206) the Hoare annotation is: (= ~c_dr_pc~0 1) [2022-10-17 17:22:10,195 INFO L895 garLoopResultBuilder]: At program point L153(lines 148 192) the Hoare annotation is: (let ((.cse0 (= ~p_dw_pc~0 1))) (or (and (= ~c_dr_pc~0 1) .cse0) (and .cse0 (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)))) [2022-10-17 17:22:10,196 INFO L895 garLoopResultBuilder]: At program point L484(line 484) the Hoare annotation is: (and (= ~c_dr_pc~0 ~p_dw_pc~0) (= ~p_dw_st~0 0) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) [2022-10-17 17:22:10,196 INFO L895 garLoopResultBuilder]: At program point L484-1(line 484) the Hoare annotation is: (and (= ~c_dr_pc~0 ~p_dw_pc~0) (= ~p_dw_st~0 0) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) [2022-10-17 17:22:10,196 INFO L895 garLoopResultBuilder]: At program point L451(lines 404 456) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2022-10-17 17:22:10,199 INFO L895 garLoopResultBuilder]: At program point L435(lines 410 450) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2022-10-17 17:22:10,202 INFO L895 garLoopResultBuilder]: At program point L171(lines 148 192) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2022-10-17 17:22:10,202 INFO L895 garLoopResultBuilder]: At program point L188(lines 145 193) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2022-10-17 17:22:10,206 INFO L899 garLoopResultBuilder]: For program point L155(lines 155 159) no Hoare annotation was computed. [2022-10-17 17:22:10,206 INFO L895 garLoopResultBuilder]: At program point L486(line 486) the Hoare annotation is: (and (= ~c_dr_pc~0 ~p_dw_pc~0) (= ~p_dw_st~0 0) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) [2022-10-17 17:22:10,206 INFO L895 garLoopResultBuilder]: At program point L486-1(line 486) the Hoare annotation is: (and (= ~c_dr_pc~0 ~p_dw_pc~0) (= ~p_dw_st~0 0) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) [2022-10-17 17:22:10,206 INFO L899 garLoopResultBuilder]: For program point L420(lines 410 450) no Hoare annotation was computed. [2022-10-17 17:22:10,207 INFO L895 garLoopResultBuilder]: At program point L503(line 503) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2022-10-17 17:22:10,207 INFO L895 garLoopResultBuilder]: At program point L503-1(line 503) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2022-10-17 17:22:10,207 INFO L895 garLoopResultBuilder]: At program point L239(line 239) the Hoare annotation is: false [2022-10-17 17:22:10,207 INFO L895 garLoopResultBuilder]: At program point L487(line 487) the Hoare annotation is: (and (= ~c_dr_pc~0 ~p_dw_pc~0) (= ~p_dw_st~0 0) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) [2022-10-17 17:22:10,208 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-17 17:22:10,208 INFO L895 garLoopResultBuilder]: At program point L504(line 504) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2022-10-17 17:22:10,208 INFO L895 garLoopResultBuilder]: At program point L505(line 505) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2022-10-17 17:22:10,209 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 446) no Hoare annotation was computed. [2022-10-17 17:22:10,209 INFO L899 garLoopResultBuilder]: For program point L523(lines 523 527) no Hoare annotation was computed. [2022-10-17 17:22:10,209 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 431) no Hoare annotation was computed. [2022-10-17 17:22:10,209 INFO L895 garLoopResultBuilder]: At program point L491-1(lines 488 528) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2022-10-17 17:22:10,209 INFO L899 garLoopResultBuilder]: For program point L508(line 508) no Hoare annotation was computed. [2022-10-17 17:22:10,210 INFO L895 garLoopResultBuilder]: At program point L244(line 244) the Hoare annotation is: false [2022-10-17 17:22:10,210 INFO L902 garLoopResultBuilder]: At program point L244-1(lines 198 252) the Hoare annotation is: true [2022-10-17 17:22:10,210 INFO L895 garLoopResultBuilder]: At program point L510(lines 510 519) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2022-10-17 17:22:10,210 INFO L899 garLoopResultBuilder]: For program point L510-2(lines 510 519) no Hoare annotation was computed. [2022-10-17 17:22:10,210 INFO L895 garLoopResultBuilder]: At program point L411(line 411) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2022-10-17 17:22:10,211 INFO L895 garLoopResultBuilder]: At program point L164-1(lines 148 192) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2022-10-17 17:22:10,211 INFO L899 garLoopResultBuilder]: For program point L413(line 413) no Hoare annotation was computed. [2022-10-17 17:22:10,211 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 161) no Hoare annotation was computed. [2022-10-17 17:22:10,211 INFO L902 garLoopResultBuilder]: At program point L529(lines 476 534) the Hoare annotation is: true [2022-10-17 17:22:10,211 INFO L895 garLoopResultBuilder]: At program point L463(line 463) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2022-10-17 17:22:10,211 INFO L895 garLoopResultBuilder]: At program point L463-1(line 463) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2022-10-17 17:22:10,212 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 207) no Hoare annotation was computed. [2022-10-17 17:22:10,212 INFO L895 garLoopResultBuilder]: At program point L514(line 514) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2022-10-17 17:22:10,212 INFO L899 garLoopResultBuilder]: For program point L66-2(lines 65 89) no Hoare annotation was computed. [2022-10-17 17:22:10,212 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 ~p_dw_pc~0)) (not (= ~p_dw_i~0 1)) (= is_do_write_p_triggered_~__retres1~0 0)) [2022-10-17 17:22:10,212 INFO L899 garLoopResultBuilder]: For program point is_do_write_p_triggeredEXIT(lines 62 90) no Hoare annotation was computed. [2022-10-17 17:22:10,213 INFO L899 garLoopResultBuilder]: For program point L77(lines 77 82) no Hoare annotation was computed. [2022-10-17 17:22:10,213 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 76 85) no Hoare annotation was computed. [2022-10-17 17:22:10,213 INFO L902 garLoopResultBuilder]: At program point is_do_write_p_triggeredENTRY(lines 62 90) the Hoare annotation is: true [2022-10-17 17:22:10,213 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 72) no Hoare annotation was computed. [2022-10-17 17:22:10,214 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 75) no Hoare annotation was computed. [2022-10-17 17:22:10,214 INFO L899 garLoopResultBuilder]: For program point errorEXIT(lines 15 22) no Hoare annotation was computed. [2022-10-17 17:22:10,215 INFO L899 garLoopResultBuilder]: For program point errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2022-10-17 17:22:10,215 INFO L902 garLoopResultBuilder]: At program point errorENTRY(lines 15 22) the Hoare annotation is: true [2022-10-17 17:22:10,220 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-10-17 17:22:10,223 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 17:22:10,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 05:22:10 BoogieIcfgContainer [2022-10-17 17:22:10,260 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 17:22:10,261 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 17:22:10,261 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 17:22:10,262 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 17:22:10,262 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:22:05" (3/4) ... [2022-10-17 17:22:10,266 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 17:22:10,272 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activate_threads [2022-10-17 17:22:10,272 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure exists_runnable_thread [2022-10-17 17:22:10,272 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure is_do_read_c_triggered [2022-10-17 17:22:10,273 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fire_delta_events [2022-10-17 17:22:10,273 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure update_channels [2022-10-17 17:22:10,273 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reset_delta_events [2022-10-17 17:22:10,274 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure is_do_write_p_triggered [2022-10-17 17:22:10,274 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure error [2022-10-17 17:22:10,299 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 45 nodes and edges [2022-10-17 17:22:10,299 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-10-17 17:22:10,300 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-10-17 17:22:10,301 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 17:22:10,404 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/bin/utaipan-G1rejxKTta/witness.graphml [2022-10-17 17:22:10,404 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 17:22:10,405 INFO L158 Benchmark]: Toolchain (without parser) took 6281.27ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 67.1MB in the beginning and 60.4MB in the end (delta: 6.7MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2022-10-17 17:22:10,405 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:22:10,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.49ms. Allocated memory is still 115.3MB. Free memory was 66.9MB in the beginning and 82.3MB in the end (delta: -15.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 17:22:10,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.79ms. Allocated memory is still 115.3MB. Free memory was 82.3MB in the beginning and 80.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:22:10,406 INFO L158 Benchmark]: Boogie Preprocessor took 74.62ms. Allocated memory is still 115.3MB. Free memory was 80.2MB in the beginning and 78.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:22:10,407 INFO L158 Benchmark]: RCFGBuilder took 936.40ms. Allocated memory is still 115.3MB. Free memory was 78.4MB in the beginning and 46.7MB in the end (delta: 31.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-10-17 17:22:10,408 INFO L158 Benchmark]: TraceAbstraction took 4666.91ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 45.8MB in the beginning and 66.7MB in the end (delta: -20.9MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2022-10-17 17:22:10,408 INFO L158 Benchmark]: Witness Printer took 143.19ms. Allocated memory is still 138.4MB. Free memory was 66.7MB in the beginning and 60.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 17:22:10,411 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.49ms. Allocated memory is still 115.3MB. Free memory was 66.9MB in the beginning and 82.3MB in the end (delta: -15.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.79ms. Allocated memory is still 115.3MB. Free memory was 82.3MB in the beginning and 80.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.62ms. Allocated memory is still 115.3MB. Free memory was 80.2MB in the beginning and 78.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 936.40ms. Allocated memory is still 115.3MB. Free memory was 78.4MB in the beginning and 46.7MB in the end (delta: 31.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4666.91ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 45.8MB in the beginning and 66.7MB in the end (delta: -20.9MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. * Witness Printer took 143.19ms. Allocated memory is still 138.4MB. Free memory was 66.7MB in the beginning and 60.4MB in the end (delta: 6.3MB). 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: 4.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 966 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 949 mSDsluCounter, 1231 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 863 mSDsCounter, 295 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1053 IncrementalHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 295 mSolverCounterUnsat, 547 mSDtfsCounter, 1053 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=282occurred in iteration=3, InterpolantAutomatonStates: 27, 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, 4 MinimizatonAttempts, 122 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 41 LocationsWithAnnotation, 394 PreInvPairs, 610 NumberOfFragments, 346 HoareAnnotationTreeSize, 394 FomulaSimplifications, 758 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 41 FomulaSimplificationsInter, 4448 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 178 NumberOfCodeBlocks, 178 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 306 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: c_dr_pc == 1 - InvariantResult [Line: 484]: Loop Invariant Derived loop invariant: ((c_dr_pc == p_dw_pc && p_dw_st == 0) && c_dr_pc == 0) && p_dw_i == 1 - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: (c_dr_pc == 0 && p_dw_i == 1) || c_dr_pc == 1 - InvariantResult [Line: 476]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: (((!(p_dw_st == 0) || !(p_dw_pc == 0)) || !(c_dr_pc == p_dw_pc)) || !(p_dw_i == 1)) || __retres1 == 0 - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: (c_dr_pc == 1 && p_dw_pc == 1) || ((p_dw_pc == 1 && c_dr_pc == 0) && p_dw_i == 1) - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: (c_dr_pc == 0 && p_dw_i == 1) || c_dr_pc == 1 - InvariantResult [Line: 488]: Loop Invariant Derived loop invariant: (c_dr_pc == 0 && p_dw_i == 1) || c_dr_pc == 1 - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 463]: Loop Invariant Derived loop invariant: (c_dr_pc == 0 && p_dw_i == 1) || c_dr_pc == 1 - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: (c_dr_pc == 0 && p_dw_i == 1) || c_dr_pc == 1 - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: (c_dr_pc == 0 && p_dw_i == 1) || c_dr_pc == 1 - InvariantResult [Line: 510]: Loop Invariant Derived loop invariant: (c_dr_pc == 0 && p_dw_i == 1) || c_dr_pc == 1 - InvariantResult [Line: 254]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 404]: Loop Invariant Derived loop invariant: (c_dr_pc == 0 && p_dw_i == 1) || c_dr_pc == 1 - InvariantResult [Line: 287]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 145]: Loop Invariant Derived loop invariant: (c_dr_pc == 0 && p_dw_i == 1) || c_dr_pc == 1 RESULT: Ultimate proved your program to be correct! [2022-10-17 17:22:10,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21e5f48-2b47-4c5a-8892-4b5aa1a2330d/bin/utaipan-G1rejxKTta/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