./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label16.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f7653f1d-9360-44b5-af03-9658e00dfcb2/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f7653f1d-9360-44b5-af03-9658e00dfcb2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f7653f1d-9360-44b5-af03-9658e00dfcb2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f7653f1d-9360-44b5-af03-9658e00dfcb2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label16.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f7653f1d-9360-44b5-af03-9658e00dfcb2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f7653f1d-9360-44b5-af03-9658e00dfcb2/bin/utaipan --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 ead0b28a9f480d825bd9d7afdc4a88c7ee5305ee ................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:00:42,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:00:42,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:00:43,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:00:43,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:00:43,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:00:43,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:00:43,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:00:43,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:00:43,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:00:43,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:00:43,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:00:43,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:00:43,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:00:43,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:00:43,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:00:43,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:00:43,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:00:43,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:00:43,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:00:43,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:00:43,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:00:43,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:00:43,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:00:43,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:00:43,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:00:43,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:00:43,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:00:43,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:00:43,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:00:43,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:00:43,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:00:43,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:00:43,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:00:43,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:00:43,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:00:43,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:00:43,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:00:43,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:00:43,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:00:43,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:00:43,057 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f7653f1d-9360-44b5-af03-9658e00dfcb2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:00:43,100 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:00:43,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:00:43,102 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:00:43,103 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:00:43,103 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:00:43,103 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:00:43,103 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:00:43,103 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:00:43,104 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:00:43,104 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:00:43,105 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:00:43,105 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:00:43,105 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:00:43,105 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:00:43,106 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:00:43,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:00:43,106 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:00:43,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:00:43,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:00:43,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:00:43,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:00:43,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:00:43,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:00:43,108 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:00:43,108 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:00:43,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:00:43,108 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:00:43,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:00:43,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:00:43,110 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:00:43,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:00:43,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:00:43,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:00:43,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:00:43,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:00:43,111 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:00:43,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:00:43,111 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:00:43,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:00:43,112 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:00:43,112 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-vcloud-master/worker/run_dir_f7653f1d-9360-44b5-af03-9658e00dfcb2/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f7653f1d-9360-44b5-af03-9658e00dfcb2/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ead0b28a9f480d825bd9d7afdc4a88c7ee5305ee [2020-11-22 13:00:43,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:00:43,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:00:43,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:00:43,414 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:00:43,415 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:00:43,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f7653f1d-9360-44b5-af03-9658e00dfcb2/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label16.c [2020-11-22 13:00:43,488 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f7653f1d-9360-44b5-af03-9658e00dfcb2/bin/utaipan/data/6f3e11f9d/7f513c5eae884396acb16d5562fc9d16/FLAG5c0c8c384 [2020-11-22 13:00:44,112 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:00:44,113 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f7653f1d-9360-44b5-af03-9658e00dfcb2/sv-benchmarks/c/eca-rers2012/Problem01_label16.c [2020-11-22 13:00:44,132 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f7653f1d-9360-44b5-af03-9658e00dfcb2/bin/utaipan/data/6f3e11f9d/7f513c5eae884396acb16d5562fc9d16/FLAG5c0c8c384 [2020-11-22 13:00:44,376 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f7653f1d-9360-44b5-af03-9658e00dfcb2/bin/utaipan/data/6f3e11f9d/7f513c5eae884396acb16d5562fc9d16 [2020-11-22 13:00:44,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:00:44,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:00:44,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:00:44,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:00:44,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:00:44,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:00:44" (1/1) ... [2020-11-22 13:00:44,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56624314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:44, skipping insertion in model container [2020-11-22 13:00:44,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:00:44" (1/1) ... [2020-11-22 13:00:44,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:00:44,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:00:44,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:00:44,843 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:00:44,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:00:44,964 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:00:44,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:44 WrapperNode [2020-11-22 13:00:44,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:00:44,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:00:44,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:00:44,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:00:44,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:44" (1/1) ... [2020-11-22 13:00:44,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:44" (1/1) ... [2020-11-22 13:00:45,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:00:45,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:00:45,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:00:45,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:00:45,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:44" (1/1) ... [2020-11-22 13:00:45,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:44" (1/1) ... [2020-11-22 13:00:45,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:44" (1/1) ... [2020-11-22 13:00:45,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:44" (1/1) ... [2020-11-22 13:00:45,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:44" (1/1) ... [2020-11-22 13:00:45,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:44" (1/1) ... [2020-11-22 13:00:45,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:44" (1/1) ... [2020-11-22 13:00:45,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:00:45,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:00:45,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:00:45,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:00:45,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7653f1d-9360-44b5-af03-9658e00dfcb2/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:00:45,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:00:45,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:00:45,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:00:45,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:00:47,546 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:00:47,546 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-22 13:00:47,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:00:47 BoogieIcfgContainer [2020-11-22 13:00:47,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:00:47,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:00:47,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:00:47,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:00:47,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:00:44" (1/3) ... [2020-11-22 13:00:47,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453eadef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:00:47, skipping insertion in model container [2020-11-22 13:00:47,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:44" (2/3) ... [2020-11-22 13:00:47,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453eadef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:00:47, skipping insertion in model container [2020-11-22 13:00:47,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:00:47" (3/3) ... [2020-11-22 13:00:47,558 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label16.c [2020-11-22 13:00:47,568 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:00:47,572 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:00:47,584 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:00:47,618 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:00:47,618 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:00:47,618 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:00:47,618 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:00:47,618 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:00:47,618 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:00:47,619 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:00:47,619 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:00:47,638 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2020-11-22 13:00:47,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-11-22 13:00:47,647 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:47,648 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:00:47,648 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:47,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:47,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1520715117, now seen corresponding path program 1 times [2020-11-22 13:00:47,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:00:47,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400061656] [2020-11-22 13:00:47,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:00:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:48,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:48,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400061656] [2020-11-22 13:00:48,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:48,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:00:48,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796532229] [2020-11-22 13:00:48,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:00:48,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:00:48,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:00:48,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:00:48,266 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 4 states. [2020-11-22 13:00:49,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:49,145 INFO L93 Difference]: Finished difference Result 297 states and 569 transitions. [2020-11-22 13:00:49,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:00:49,147 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2020-11-22 13:00:49,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:49,159 INFO L225 Difference]: With dead ends: 297 [2020-11-22 13:00:49,160 INFO L226 Difference]: Without dead ends: 216 [2020-11-22 13:00:49,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:00:49,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-11-22 13:00:49,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2020-11-22 13:00:49,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-11-22 13:00:49,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 354 transitions. [2020-11-22 13:00:49,212 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 354 transitions. Word has length 71 [2020-11-22 13:00:49,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:49,213 INFO L481 AbstractCegarLoop]: Abstraction has 216 states and 354 transitions. [2020-11-22 13:00:49,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:00:49,213 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 354 transitions. [2020-11-22 13:00:49,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-11-22 13:00:49,224 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:49,225 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:00:49,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:00:49,226 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:49,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:49,227 INFO L82 PathProgramCache]: Analyzing trace with hash 2026363827, now seen corresponding path program 1 times [2020-11-22 13:00:49,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:00:49,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429010781] [2020-11-22 13:00:49,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:00:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:49,343 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-22 13:00:49,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429010781] [2020-11-22 13:00:49,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:49,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:00:49,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191556157] [2020-11-22 13:00:49,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:00:49,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:00:49,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:00:49,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:00:49,350 INFO L87 Difference]: Start difference. First operand 216 states and 354 transitions. Second operand 3 states. [2020-11-22 13:00:49,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:49,966 INFO L93 Difference]: Finished difference Result 502 states and 905 transitions. [2020-11-22 13:00:49,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:00:49,967 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2020-11-22 13:00:49,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:49,971 INFO L225 Difference]: With dead ends: 502 [2020-11-22 13:00:49,972 INFO L226 Difference]: Without dead ends: 358 [2020-11-22 13:00:49,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:00:49,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-11-22 13:00:49,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 287. [2020-11-22 13:00:49,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-11-22 13:00:49,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 449 transitions. [2020-11-22 13:00:49,999 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 449 transitions. Word has length 88 [2020-11-22 13:00:50,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:50,000 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 449 transitions. [2020-11-22 13:00:50,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:00:50,000 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 449 transitions. [2020-11-22 13:00:50,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-11-22 13:00:50,005 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:50,006 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:00:50,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:00:50,006 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:50,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:50,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1996684893, now seen corresponding path program 1 times [2020-11-22 13:00:50,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:00:50,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266226035] [2020-11-22 13:00:50,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:00:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:50,107 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-11-22 13:00:50,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266226035] [2020-11-22 13:00:50,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:50,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:00:50,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621435939] [2020-11-22 13:00:50,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:00:50,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:00:50,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:00:50,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:00:50,116 INFO L87 Difference]: Start difference. First operand 287 states and 449 transitions. Second operand 3 states. [2020-11-22 13:00:50,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:50,639 INFO L93 Difference]: Finished difference Result 642 states and 1051 transitions. [2020-11-22 13:00:50,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:00:50,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2020-11-22 13:00:50,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:50,640 INFO L225 Difference]: With dead ends: 642 [2020-11-22 13:00:50,640 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:00:50,643 INFO L677 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 [2020-11-22 13:00:50,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:00:50,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:00:50,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:00:50,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:00:50,644 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 97 [2020-11-22 13:00:50,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:50,645 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:00:50,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:00:50,645 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:00:50,645 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:00:50,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-22 13:00:50,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 13:00:50,690 INFO L274 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2020-11-22 13:00:50,691 INFO L274 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2020-11-22 13:00:50,691 INFO L274 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2020-11-22 13:00:50,691 INFO L274 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2020-11-22 13:00:50,691 INFO L274 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2020-11-22 13:00:50,691 INFO L274 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2020-11-22 13:00:50,691 INFO L274 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2020-11-22 13:00:50,691 INFO L274 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2020-11-22 13:00:50,691 INFO L274 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2020-11-22 13:00:50,691 INFO L274 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2020-11-22 13:00:50,691 INFO L274 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2020-11-22 13:00:50,692 INFO L274 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2020-11-22 13:00:50,692 INFO L274 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2020-11-22 13:00:50,692 INFO L274 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2020-11-22 13:00:50,692 INFO L274 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2020-11-22 13:00:50,692 INFO L274 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2020-11-22 13:00:50,692 INFO L274 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2020-11-22 13:00:50,692 INFO L274 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2020-11-22 13:00:50,692 INFO L274 CegarLoopResult]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2020-11-22 13:00:50,692 INFO L274 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2020-11-22 13:00:50,692 INFO L274 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2020-11-22 13:00:50,693 INFO L274 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2020-11-22 13:00:50,693 INFO L274 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2020-11-22 13:00:50,693 INFO L274 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2020-11-22 13:00:50,693 INFO L274 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2020-11-22 13:00:50,693 INFO L274 CegarLoopResult]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2020-11-22 13:00:50,693 INFO L274 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2020-11-22 13:00:50,693 INFO L274 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2020-11-22 13:00:50,693 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-11-22 13:00:50,693 INFO L274 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2020-11-22 13:00:50,693 INFO L274 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2020-11-22 13:00:50,694 INFO L274 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2020-11-22 13:00:50,694 INFO L274 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2020-11-22 13:00:50,694 INFO L274 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2020-11-22 13:00:50,694 INFO L274 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2020-11-22 13:00:50,694 INFO L274 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2020-11-22 13:00:50,694 INFO L274 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2020-11-22 13:00:50,694 INFO L274 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2020-11-22 13:00:50,694 INFO L274 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2020-11-22 13:00:50,694 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 13:00:50,695 INFO L274 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2020-11-22 13:00:50,695 INFO L274 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2020-11-22 13:00:50,695 INFO L274 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2020-11-22 13:00:50,695 INFO L270 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (or (and (= ~a21~0 1) (= ~a17~0 1)) (<= ~a16~0 5) (not (= 14 ~a8~0))) [2020-11-22 13:00:50,695 INFO L274 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2020-11-22 13:00:50,695 INFO L274 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2020-11-22 13:00:50,695 INFO L274 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2020-11-22 13:00:50,695 INFO L274 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2020-11-22 13:00:50,695 INFO L274 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2020-11-22 13:00:50,696 INFO L274 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2020-11-22 13:00:50,696 INFO L274 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2020-11-22 13:00:50,696 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 13:00:50,696 INFO L274 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2020-11-22 13:00:50,696 INFO L277 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2020-11-22 13:00:50,696 INFO L274 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2020-11-22 13:00:50,696 INFO L274 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2020-11-22 13:00:50,696 INFO L274 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2020-11-22 13:00:50,696 INFO L274 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2020-11-22 13:00:50,697 INFO L274 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2020-11-22 13:00:50,697 INFO L274 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2020-11-22 13:00:50,697 INFO L274 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2020-11-22 13:00:50,697 INFO L274 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2020-11-22 13:00:50,697 INFO L274 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2020-11-22 13:00:50,697 INFO L274 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2020-11-22 13:00:50,697 INFO L274 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2020-11-22 13:00:50,697 INFO L274 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2020-11-22 13:00:50,697 INFO L274 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2020-11-22 13:00:50,698 INFO L270 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (or (and (= ~a21~0 1) (= ~a17~0 1)) (<= ~a16~0 5) (not (= 14 ~a8~0))) [2020-11-22 13:00:50,698 INFO L274 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2020-11-22 13:00:50,698 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 13:00:50,698 INFO L274 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2020-11-22 13:00:50,698 INFO L274 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2020-11-22 13:00:50,698 INFO L274 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2020-11-22 13:00:50,698 INFO L274 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2020-11-22 13:00:50,698 INFO L274 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2020-11-22 13:00:50,698 INFO L274 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2020-11-22 13:00:50,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:00:50 BoogieIcfgContainer [2020-11-22 13:00:50,720 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:00:50,721 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:00:50,722 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:00:50,722 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:00:50,722 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:00:47" (3/4) ... [2020-11-22 13:00:50,726 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:00:50,761 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 103 nodes and edges [2020-11-22 13:00:50,763 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2020-11-22 13:00:50,764 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-22 13:00:50,766 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 13:00:50,932 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f7653f1d-9360-44b5-af03-9658e00dfcb2/bin/utaipan/witness.graphml [2020-11-22 13:00:50,932 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:00:50,934 INFO L168 Benchmark]: Toolchain (without parser) took 6552.00 ms. Allocated memory was 96.5 MB in the beginning and 201.3 MB in the end (delta: 104.9 MB). Free memory was 57.2 MB in the beginning and 107.0 MB in the end (delta: -49.8 MB). Peak memory consumption was 55.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:50,934 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory is still 75.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:00:50,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 582.23 ms. Allocated memory is still 96.5 MB. Free memory was 57.0 MB in the beginning and 55.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:50,935 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.04 ms. Allocated memory is still 96.5 MB. Free memory was 55.5 MB in the beginning and 49.6 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:50,936 INFO L168 Benchmark]: Boogie Preprocessor took 63.80 ms. Allocated memory is still 96.5 MB. Free memory was 49.6 MB in the beginning and 45.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:50,936 INFO L168 Benchmark]: RCFGBuilder took 2413.87 ms. Allocated memory was 96.5 MB in the beginning and 167.8 MB in the end (delta: 71.3 MB). Free memory was 45.1 MB in the beginning and 78.1 MB in the end (delta: -33.1 MB). Peak memory consumption was 42.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:50,937 INFO L168 Benchmark]: TraceAbstraction took 3170.10 ms. Allocated memory was 167.8 MB in the beginning and 201.3 MB in the end (delta: 33.6 MB). Free memory was 77.1 MB in the beginning and 122.7 MB in the end (delta: -45.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:00:50,938 INFO L168 Benchmark]: Witness Printer took 211.26 ms. Allocated memory is still 201.3 MB. Free memory was 122.7 MB in the beginning and 107.0 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:50,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory is still 75.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 582.23 ms. Allocated memory is still 96.5 MB. Free memory was 57.0 MB in the beginning and 55.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 102.04 ms. Allocated memory is still 96.5 MB. Free memory was 55.5 MB in the beginning and 49.6 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.80 ms. Allocated memory is still 96.5 MB. Free memory was 49.6 MB in the beginning and 45.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2413.87 ms. Allocated memory was 96.5 MB in the beginning and 167.8 MB in the end (delta: 71.3 MB). Free memory was 45.1 MB in the beginning and 78.1 MB in the end (delta: -33.1 MB). Peak memory consumption was 42.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3170.10 ms. Allocated memory was 167.8 MB in the beginning and 201.3 MB in the end (delta: 33.6 MB). Free memory was 77.1 MB in the beginning and 122.7 MB in the end (delta: -45.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 211.26 ms. Allocated memory is still 201.3 MB. Free memory was 122.7 MB in the beginning and 107.0 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((a21 == 1 && a17 == 1) || a16 <= 5) || !(14 == a8) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((a21 == 1 && a17 == 1) || a16 <= 5) || !(14 == a8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 109 SDtfs, 313 SDslu, 19 SDs, 0 SdLazy, 755 SolverSat, 308 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=287occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 71 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 18 NumberOfFragments, 31 HoareAnnotationTreeSize, 3 FomulaSimplifications, 128 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 253 ConstructedInterpolants, 0 QuantifiedInterpolants, 117655 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 59/59 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...