./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 aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 677126e8d6773c92cc337bfe0a3ec155f49f784424155f33a8c9c24ee0a42113 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:16:16,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:16:16,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:16:17,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:16:17,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:16:17,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:16:17,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:16:17,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:16:17,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:16:17,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:16:17,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:16:17,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:16:17,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:16:17,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:16:17,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:16:17,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:16:17,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:16:17,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:16:17,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:16:17,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:16:17,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:16:17,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:16:17,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:16:17,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:16:17,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:16:17,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:16:17,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:16:17,112 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:16:17,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:16:17,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:16:17,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:16:17,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:16:17,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:16:17,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:16:17,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:16:17,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:16:17,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:16:17,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:16:17,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:16:17,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:16:17,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:16:17,125 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:16:17,170 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:16:17,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:16:17,171 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:16:17,171 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:16:17,172 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:16:17,172 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:16:17,179 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:16:17,179 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:16:17,179 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:16:17,179 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:16:17,181 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:16:17,181 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:16:17,181 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:16:17,181 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:16:17,181 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:16:17,182 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:16:17,182 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:16:17,182 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:16:17,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:16:17,184 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:16:17,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:16:17,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:16:17,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:16:17,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:16:17,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:16:17,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:16:17,187 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:16:17,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:16:17,188 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:16:17,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:16:17,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:16:17,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:16:17,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:16:17,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:16:17,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:16:17,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:16:17,190 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:16:17,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:16:17,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:16:17,190 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:16:17,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:16:17,191 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 677126e8d6773c92cc337bfe0a3ec155f49f784424155f33a8c9c24ee0a42113 [2021-11-23 02:16:17,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:16:17,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:16:17,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:16:17,522 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:16:17,523 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:16:17,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2021-11-23 02:16:17,592 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/bin/utaipan-EQgc7hIp5V/data/e6488337b/511dbeba49584e93ab02fb46b07e63fe/FLAGba4c10efa [2021-11-23 02:16:18,080 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:16:18,081 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2021-11-23 02:16:18,096 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/bin/utaipan-EQgc7hIp5V/data/e6488337b/511dbeba49584e93ab02fb46b07e63fe/FLAGba4c10efa [2021-11-23 02:16:18,453 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/bin/utaipan-EQgc7hIp5V/data/e6488337b/511dbeba49584e93ab02fb46b07e63fe [2021-11-23 02:16:18,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:16:18,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:16:18,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:16:18,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:16:18,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:16:18,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:16:18" (1/1) ... [2021-11-23 02:16:18,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@385369bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:18, skipping insertion in model container [2021-11-23 02:16:18,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:16:18" (1/1) ... [2021-11-23 02:16:18,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:16:18,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:16:18,716 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_d6362ed3-1145-4a11-a450-d5af1100e374/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[640,653] [2021-11-23 02:16:18,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:16:18,801 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:16:18,826 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_d6362ed3-1145-4a11-a450-d5af1100e374/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[640,653] [2021-11-23 02:16:18,884 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:16:18,903 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:16:18,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:18 WrapperNode [2021-11-23 02:16:18,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:16:18,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:16:18,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:16:18,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:16:18,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:18" (1/1) ... [2021-11-23 02:16:18,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:18" (1/1) ... [2021-11-23 02:16:18,970 INFO L137 Inliner]: procedures = 31, calls = 35, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 225 [2021-11-23 02:16:18,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:16:18,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:16:18,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:16:18,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:16:18,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:18" (1/1) ... [2021-11-23 02:16:18,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:18" (1/1) ... [2021-11-23 02:16:18,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:18" (1/1) ... [2021-11-23 02:16:18,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:18" (1/1) ... [2021-11-23 02:16:19,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:18" (1/1) ... [2021-11-23 02:16:19,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:18" (1/1) ... [2021-11-23 02:16:19,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:18" (1/1) ... [2021-11-23 02:16:19,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:16:19,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:16:19,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:16:19,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:16:19,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:18" (1/1) ... [2021-11-23 02:16:19,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:16:19,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:16:19,067 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:16:19,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:16:19,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:16:19,116 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-11-23 02:16:19,116 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-11-23 02:16:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2021-11-23 02:16:19,117 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2021-11-23 02:16:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 02:16:19,117 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 02:16:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 02:16:19,118 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 02:16:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 02:16:19,118 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 02:16:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 02:16:19,118 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 02:16:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:16:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 02:16:19,119 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 02:16:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:16:19,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:16:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2021-11-23 02:16:19,120 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2021-11-23 02:16:19,197 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:16:19,199 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:16:19,535 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !(1 == ~q_free~0); [2021-11-23 02:16:19,535 INFO L768 $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; [2021-11-23 02:16:19,551 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:16:19,680 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:16:19,680 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 02:16:19,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:16:19 BoogieIcfgContainer [2021-11-23 02:16:19,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:16:19,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:16:19,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:16:19,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:16:19,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:16:18" (1/3) ... [2021-11-23 02:16:19,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2244e3b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:16:19, skipping insertion in model container [2021-11-23 02:16:19,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:18" (2/3) ... [2021-11-23 02:16:19,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2244e3b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:16:19, skipping insertion in model container [2021-11-23 02:16:19,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:16:19" (3/3) ... [2021-11-23 02:16:19,697 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2021-11-23 02:16:19,701 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:16:19,701 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:16:19,745 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:16:19,752 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:16:19,753 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:16:19,772 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) [2021-11-23 02:16:19,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 02:16:19,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:16:19,781 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:16:19,781 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:16:19,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:16:19,787 INFO L85 PathProgramCache]: Analyzing trace with hash -921868616, now seen corresponding path program 1 times [2021-11-23 02:16:19,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:16:19,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080138419] [2021-11-23 02:16:19,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:19,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:16:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:20,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:16:20,013 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:16:20,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080138419] [2021-11-23 02:16:20,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080138419] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:16:20,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:16:20,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:16:20,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494952599] [2021-11-23 02:16:20,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:16:20,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:16:20,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:16:20,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:16:20,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:16:20,051 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) [2021-11-23 02:16:20,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:16:20,315 INFO L93 Difference]: Finished difference Result 285 states and 409 transitions. [2021-11-23 02:16:20,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:16:20,320 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 [2021-11-23 02:16:20,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:16:20,339 INFO L225 Difference]: With dead ends: 285 [2021-11-23 02:16:20,339 INFO L226 Difference]: Without dead ends: 205 [2021-11-23 02:16:20,346 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:16:20,353 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 167 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:16:20,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 278 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:16:20,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-11-23 02:16:20,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 194. [2021-11-23 02:16:20,414 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) [2021-11-23 02:16:20,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 259 transitions. [2021-11-23 02:16:20,419 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 259 transitions. Word has length 43 [2021-11-23 02:16:20,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:16:20,420 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 259 transitions. [2021-11-23 02:16:20,420 INFO L471 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) [2021-11-23 02:16:20,420 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 259 transitions. [2021-11-23 02:16:20,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 02:16:20,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:16:20,423 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:16:20,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:16:20,424 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:16:20,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:16:20,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1441888284, now seen corresponding path program 1 times [2021-11-23 02:16:20,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:16:20,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183420728] [2021-11-23 02:16:20,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:20,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:16:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:20,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:16:20,578 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:16:20,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183420728] [2021-11-23 02:16:20,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183420728] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:16:20,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:16:20,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:16:20,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580322233] [2021-11-23 02:16:20,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:16:20,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:16:20,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:16:20,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:16:20,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:16:20,582 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) [2021-11-23 02:16:21,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:16:21,296 INFO L93 Difference]: Finished difference Result 731 states and 982 transitions. [2021-11-23 02:16:21,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:16:21,297 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 [2021-11-23 02:16:21,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:16:21,304 INFO L225 Difference]: With dead ends: 731 [2021-11-23 02:16:21,310 INFO L226 Difference]: Without dead ends: 265 [2021-11-23 02:16:21,317 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:16:21,319 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 506 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:16:21,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [514 Valid, 589 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 02:16:21,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-11-23 02:16:21,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 180. [2021-11-23 02:16:21,361 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) [2021-11-23 02:16:21,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 223 transitions. [2021-11-23 02:16:21,363 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 223 transitions. Word has length 44 [2021-11-23 02:16:21,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:16:21,364 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 223 transitions. [2021-11-23 02:16:21,364 INFO L471 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) [2021-11-23 02:16:21,364 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 223 transitions. [2021-11-23 02:16:21,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 02:16:21,366 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:16:21,366 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:16:21,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:16:21,367 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:16:21,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:16:21,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1727576631, now seen corresponding path program 1 times [2021-11-23 02:16:21,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:16:21,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565291434] [2021-11-23 02:16:21,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:21,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:16:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:21,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:16:21,532 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:16:21,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565291434] [2021-11-23 02:16:21,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565291434] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:16:21,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:16:21,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 02:16:21,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689732636] [2021-11-23 02:16:21,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:16:21,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:16:21,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:16:21,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:16:21,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:16:21,540 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) [2021-11-23 02:16:21,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:16:21,921 INFO L93 Difference]: Finished difference Result 482 states and 591 transitions. [2021-11-23 02:16:21,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 02:16:21,922 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 [2021-11-23 02:16:21,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:16:21,925 INFO L225 Difference]: With dead ends: 482 [2021-11-23 02:16:21,925 INFO L226 Difference]: Without dead ends: 308 [2021-11-23 02:16:21,926 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:16:21,927 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 205 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:16:21,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 306 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:16:21,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2021-11-23 02:16:21,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 282. [2021-11-23 02:16:21,967 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) [2021-11-23 02:16:21,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 345 transitions. [2021-11-23 02:16:21,969 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 345 transitions. Word has length 45 [2021-11-23 02:16:21,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:16:21,970 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 345 transitions. [2021-11-23 02:16:21,970 INFO L471 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) [2021-11-23 02:16:21,970 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 345 transitions. [2021-11-23 02:16:21,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 02:16:21,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:16:21,972 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:16:21,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:16:21,972 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:16:21,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:16:21,973 INFO L85 PathProgramCache]: Analyzing trace with hash 851206718, now seen corresponding path program 1 times [2021-11-23 02:16:21,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:16:21,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348047384] [2021-11-23 02:16:21,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:21,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:16:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:22,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:16:22,024 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:16:22,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348047384] [2021-11-23 02:16:22,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348047384] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:16:22,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:16:22,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:16:22,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535680153] [2021-11-23 02:16:22,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:16:22,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:16:22,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:16:22,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:16:22,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:16:22,027 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) [2021-11-23 02:16:22,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:16:22,067 INFO L93 Difference]: Finished difference Result 547 states and 681 transitions. [2021-11-23 02:16:22,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:16:22,068 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 [2021-11-23 02:16:22,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:16:22,069 INFO L225 Difference]: With dead ends: 547 [2021-11-23 02:16:22,069 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 02:16:22,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:16:22,072 INFO L933 BasicCegarLoop]: 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 [2021-11-23 02:16:22,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 69 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:16:22,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 02:16:22,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 02:16:22,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:16:22,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 02:16:22,074 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2021-11-23 02:16:22,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:16:22,074 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 02:16:22,075 INFO L471 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) [2021-11-23 02:16:22,075 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 02:16:22,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 02:16:22,077 INFO L764 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:16:22,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:16:22,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 02:16:23,170 INFO L854 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))) [2021-11-23 02:16:23,171 INFO L854 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))) [2021-11-23 02:16:23,171 INFO L858 garLoopResultBuilder]: For program point L385-1(line 385) no Hoare annotation was computed. [2021-11-23 02:16:23,171 INFO L854 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))) [2021-11-23 02:16:23,171 INFO L858 garLoopResultBuilder]: For program point activate_threadsEXIT(lines 379 403) no Hoare annotation was computed. [2021-11-23 02:16:23,171 INFO L858 garLoopResultBuilder]: For program point L393(line 393) no Hoare annotation was computed. [2021-11-23 02:16:23,171 INFO L858 garLoopResultBuilder]: For program point exists_runnable_threadEXIT(lines 287 306) no Hoare annotation was computed. [2021-11-23 02:16:23,172 INFO L861 garLoopResultBuilder]: At program point exists_runnable_threadENTRY(lines 287 306) the Hoare annotation is: true [2021-11-23 02:16:23,172 INFO L858 garLoopResultBuilder]: For program point L96(lines 96 101) no Hoare annotation was computed. [2021-11-23 02:16:23,172 INFO L858 garLoopResultBuilder]: For program point L95(lines 95 104) no Hoare annotation was computed. [2021-11-23 02:16:23,172 INFO L858 garLoopResultBuilder]: For program point L95-2(lines 94 118) no Hoare annotation was computed. [2021-11-23 02:16:23,172 INFO L861 garLoopResultBuilder]: At program point is_do_read_c_triggeredENTRY(lines 91 119) the Hoare annotation is: true [2021-11-23 02:16:23,172 INFO L861 garLoopResultBuilder]: At program point L116(lines 94 118) the Hoare annotation is: true [2021-11-23 02:16:23,173 INFO L858 garLoopResultBuilder]: For program point L106(lines 106 111) no Hoare annotation was computed. [2021-11-23 02:16:23,173 INFO L858 garLoopResultBuilder]: For program point L105-1(lines 105 114) no Hoare annotation was computed. [2021-11-23 02:16:23,173 INFO L858 garLoopResultBuilder]: For program point is_do_read_c_triggeredEXIT(lines 91 119) no Hoare annotation was computed. [2021-11-23 02:16:23,173 INFO L861 garLoopResultBuilder]: At program point fire_delta_eventsENTRY(lines 307 324) the Hoare annotation is: true [2021-11-23 02:16:23,173 INFO L858 garLoopResultBuilder]: For program point fire_delta_eventsEXIT(lines 307 324) no Hoare annotation was computed. [2021-11-23 02:16:23,173 INFO L861 garLoopResultBuilder]: At program point update_channelsENTRY(lines 254 268) the Hoare annotation is: true [2021-11-23 02:16:23,174 INFO L858 garLoopResultBuilder]: For program point update_channelsEXIT(lines 254 268) no Hoare annotation was computed. [2021-11-23 02:16:23,174 INFO L858 garLoopResultBuilder]: For program point reset_delta_eventsEXIT(lines 325 342) no Hoare annotation was computed. [2021-11-23 02:16:23,174 INFO L861 garLoopResultBuilder]: At program point reset_delta_eventsENTRY(lines 325 342) the Hoare annotation is: true [2021-11-23 02:16:23,174 INFO L854 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)) [2021-11-23 02:16:23,174 INFO L858 garLoopResultBuilder]: For program point L415(lines 415 419) no Hoare annotation was computed. [2021-11-23 02:16:23,174 INFO L858 garLoopResultBuilder]: For program point L415-1(lines 410 450) no Hoare annotation was computed. [2021-11-23 02:16:23,175 INFO L858 garLoopResultBuilder]: For program point L234(lines 234 246) no Hoare annotation was computed. [2021-11-23 02:16:23,175 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 02:16:23,175 INFO L858 garLoopResultBuilder]: For program point L152(lines 152 160) no Hoare annotation was computed. [2021-11-23 02:16:23,175 INFO L854 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)) [2021-11-23 02:16:23,175 INFO L858 garLoopResultBuilder]: For program point L499-1(line 499) no Hoare annotation was computed. [2021-11-23 02:16:23,175 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 241) no Hoare annotation was computed. [2021-11-23 02:16:23,175 INFO L854 garLoopResultBuilder]: At program point L202(lines 202 206) the Hoare annotation is: (= ~c_dr_pc~0 1) [2021-11-23 02:16:23,176 INFO L854 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)))) [2021-11-23 02:16:23,176 INFO L854 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)) [2021-11-23 02:16:23,176 INFO L854 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)) [2021-11-23 02:16:23,176 INFO L854 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)) [2021-11-23 02:16:23,176 INFO L854 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)) [2021-11-23 02:16:23,176 INFO L854 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)) [2021-11-23 02:16:23,177 INFO L854 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)) [2021-11-23 02:16:23,177 INFO L858 garLoopResultBuilder]: For program point L155(lines 155 159) no Hoare annotation was computed. [2021-11-23 02:16:23,177 INFO L854 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)) [2021-11-23 02:16:23,177 INFO L854 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)) [2021-11-23 02:16:23,177 INFO L858 garLoopResultBuilder]: For program point L420(lines 410 450) no Hoare annotation was computed. [2021-11-23 02:16:23,177 INFO L854 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)) [2021-11-23 02:16:23,178 INFO L854 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)) [2021-11-23 02:16:23,178 INFO L854 garLoopResultBuilder]: At program point L239(line 239) the Hoare annotation is: false [2021-11-23 02:16:23,178 INFO L854 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)) [2021-11-23 02:16:23,178 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 02:16:23,178 INFO L854 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)) [2021-11-23 02:16:23,178 INFO L854 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)) [2021-11-23 02:16:23,179 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 446) no Hoare annotation was computed. [2021-11-23 02:16:23,179 INFO L858 garLoopResultBuilder]: For program point L523(lines 523 527) no Hoare annotation was computed. [2021-11-23 02:16:23,179 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 431) no Hoare annotation was computed. [2021-11-23 02:16:23,179 INFO L854 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)) [2021-11-23 02:16:23,179 INFO L858 garLoopResultBuilder]: For program point L508(line 508) no Hoare annotation was computed. [2021-11-23 02:16:23,179 INFO L854 garLoopResultBuilder]: At program point L244(line 244) the Hoare annotation is: false [2021-11-23 02:16:23,179 INFO L861 garLoopResultBuilder]: At program point L244-1(lines 198 252) the Hoare annotation is: true [2021-11-23 02:16:23,180 INFO L854 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)) [2021-11-23 02:16:23,180 INFO L858 garLoopResultBuilder]: For program point L510-2(lines 510 519) no Hoare annotation was computed. [2021-11-23 02:16:23,180 INFO L854 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)) [2021-11-23 02:16:23,180 INFO L854 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)) [2021-11-23 02:16:23,180 INFO L858 garLoopResultBuilder]: For program point L413(line 413) no Hoare annotation was computed. [2021-11-23 02:16:23,180 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 161) no Hoare annotation was computed. [2021-11-23 02:16:23,181 INFO L861 garLoopResultBuilder]: At program point L529(lines 476 534) the Hoare annotation is: true [2021-11-23 02:16:23,181 INFO L854 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)) [2021-11-23 02:16:23,181 INFO L854 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)) [2021-11-23 02:16:23,181 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 207) no Hoare annotation was computed. [2021-11-23 02:16:23,181 INFO L854 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)) [2021-11-23 02:16:23,181 INFO L858 garLoopResultBuilder]: For program point L66-2(lines 65 89) no Hoare annotation was computed. [2021-11-23 02:16:23,181 INFO L854 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)) [2021-11-23 02:16:23,181 INFO L858 garLoopResultBuilder]: For program point is_do_write_p_triggeredEXIT(lines 62 90) no Hoare annotation was computed. [2021-11-23 02:16:23,181 INFO L858 garLoopResultBuilder]: For program point L77(lines 77 82) no Hoare annotation was computed. [2021-11-23 02:16:23,182 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 76 85) no Hoare annotation was computed. [2021-11-23 02:16:23,182 INFO L861 garLoopResultBuilder]: At program point is_do_write_p_triggeredENTRY(lines 62 90) the Hoare annotation is: true [2021-11-23 02:16:23,182 INFO L858 garLoopResultBuilder]: For program point L67(lines 67 72) no Hoare annotation was computed. [2021-11-23 02:16:23,182 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 75) no Hoare annotation was computed. [2021-11-23 02:16:23,182 INFO L858 garLoopResultBuilder]: For program point errorEXIT(lines 15 22) no Hoare annotation was computed. [2021-11-23 02:16:23,182 INFO L858 garLoopResultBuilder]: For program point errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-23 02:16:23,182 INFO L861 garLoopResultBuilder]: At program point errorENTRY(lines 15 22) the Hoare annotation is: true [2021-11-23 02:16:23,185 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-23 02:16:23,186 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:16:23,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:16:23 BoogieIcfgContainer [2021-11-23 02:16:23,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:16:23,223 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:16:23,223 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:16:23,223 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:16:23,224 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:16:19" (3/4) ... [2021-11-23 02:16:23,228 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 02:16:23,234 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activate_threads [2021-11-23 02:16:23,234 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure exists_runnable_thread [2021-11-23 02:16:23,234 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure is_do_read_c_triggered [2021-11-23 02:16:23,235 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fire_delta_events [2021-11-23 02:16:23,235 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure update_channels [2021-11-23 02:16:23,235 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reset_delta_events [2021-11-23 02:16:23,235 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure is_do_write_p_triggered [2021-11-23 02:16:23,236 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure error [2021-11-23 02:16:23,257 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 45 nodes and edges [2021-11-23 02:16:23,258 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-11-23 02:16:23,259 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-23 02:16:23,260 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:16:23,360 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:16:23,361 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:16:23,361 INFO L158 Benchmark]: Toolchain (without parser) took 4902.69ms. Allocated memory was 94.4MB in the beginning and 138.4MB in the end (delta: 44.0MB). Free memory was 57.4MB in the beginning and 55.6MB in the end (delta: 1.8MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2021-11-23 02:16:23,362 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 94.4MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:16:23,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.45ms. Allocated memory was 94.4MB in the beginning and 138.4MB in the end (delta: 44.0MB). Free memory was 57.2MB in the beginning and 112.6MB in the end (delta: -55.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 02:16:23,362 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.11ms. Allocated memory is still 138.4MB. Free memory was 112.6MB in the beginning and 110.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:16:23,363 INFO L158 Benchmark]: Boogie Preprocessor took 59.55ms. Allocated memory is still 138.4MB. Free memory was 110.5MB in the beginning and 108.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:16:23,363 INFO L158 Benchmark]: RCFGBuilder took 650.48ms. Allocated memory is still 138.4MB. Free memory was 108.9MB in the beginning and 84.8MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-23 02:16:23,364 INFO L158 Benchmark]: TraceAbstraction took 3537.13ms. Allocated memory is still 138.4MB. Free memory was 84.2MB in the beginning and 61.8MB in the end (delta: 22.4MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2021-11-23 02:16:23,365 INFO L158 Benchmark]: Witness Printer took 138.19ms. Allocated memory is still 138.4MB. Free memory was 61.8MB in the beginning and 55.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 02:16:23,369 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 94.4MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 444.45ms. Allocated memory was 94.4MB in the beginning and 138.4MB in the end (delta: 44.0MB). Free memory was 57.2MB in the beginning and 112.6MB in the end (delta: -55.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.11ms. Allocated memory is still 138.4MB. Free memory was 112.6MB in the beginning and 110.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.55ms. Allocated memory is still 138.4MB. Free memory was 110.5MB in the beginning and 108.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 650.48ms. Allocated memory is still 138.4MB. Free memory was 108.9MB in the beginning and 84.8MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3537.13ms. Allocated memory is still 138.4MB. Free memory was 84.2MB in the beginning and 61.8MB in the end (delta: 22.4MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. * Witness Printer took 138.19ms. Allocated memory is still 138.4MB. Free memory was 61.8MB in the beginning and 55.6MB 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: 3.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 965 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 949 mSDsluCounter, 1242 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 874 mSDsCounter, 295 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1040 IncrementalHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 295 mSolverCounterUnsat, 547 mSDtfsCounter, 1040 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, 0.1s 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 122 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 41 LocationsWithAnnotation, 394 PreInvPairs, 610 NumberOfFragments, 346 HoareAnnotationTreeSize, 394 FomulaSimplifications, 758 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 41 FomulaSimplificationsInter, 4580 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s 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! [2021-11-23 02:16:23,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6362ed3-1145-4a11-a450-d5af1100e374/bin/utaipan-EQgc7hIp5V/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