./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label13.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_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/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_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label13.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/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_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/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 29c272f94fc98eecb70c8e165b01acafdc9b1cf1c8d08d69100d178e45ed1c97 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:27:05,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:27:05,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:27:05,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:27:05,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:27:05,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:27:05,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:27:05,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:27:05,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:27:05,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:27:05,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:27:05,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:27:05,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:27:05,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:27:05,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:27:05,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:27:05,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:27:05,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:27:05,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:27:05,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:27:05,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:27:05,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:27:05,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:27:05,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:27:05,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:27:05,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:27:05,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:27:05,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:27:05,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:27:05,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:27:05,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:27:05,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:27:05,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:27:05,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:27:05,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:27:05,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:27:05,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:27:05,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:27:05,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:27:05,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:27:05,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:27:05,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:27:05,365 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:27:05,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:27:05,366 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:27:05,367 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:27:05,368 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:27:05,368 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:27:05,369 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:27:05,369 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:27:05,369 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:27:05,370 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:27:05,370 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:27:05,371 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:27:05,371 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:27:05,371 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:27:05,372 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:27:05,372 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:27:05,372 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:27:05,373 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:27:05,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:27:05,374 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:27:05,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:27:05,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:27:05,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:27:05,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:27:05,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:27:05,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:27:05,376 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:27:05,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:27:05,376 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:27:05,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:27:05,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:27:05,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:27:05,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:27:05,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:27:05,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:27:05,378 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:27:05,378 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:27:05,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:27:05,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:27:05,379 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:27:05,379 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:27:05,379 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_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29c272f94fc98eecb70c8e165b01acafdc9b1cf1c8d08d69100d178e45ed1c97 [2021-11-23 02:27:05,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:27:05,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:27:05,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:27:05,785 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:27:05,787 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:27:05,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/eca-rers2012/Problem10_label13.c [2021-11-23 02:27:05,893 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/bin/utaipan-EQgc7hIp5V/data/3c80f1de9/6266c7a8a0d84d0192b6e8608ab82fe3/FLAGce4af4711 [2021-11-23 02:27:06,864 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:27:06,865 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/sv-benchmarks/c/eca-rers2012/Problem10_label13.c [2021-11-23 02:27:06,883 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/bin/utaipan-EQgc7hIp5V/data/3c80f1de9/6266c7a8a0d84d0192b6e8608ab82fe3/FLAGce4af4711 [2021-11-23 02:27:07,022 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/bin/utaipan-EQgc7hIp5V/data/3c80f1de9/6266c7a8a0d84d0192b6e8608ab82fe3 [2021-11-23 02:27:07,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:27:07,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:27:07,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:27:07,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:27:07,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:27:07,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:27:07" (1/1) ... [2021-11-23 02:27:07,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ada447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:07, skipping insertion in model container [2021-11-23 02:27:07,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:27:07" (1/1) ... [2021-11-23 02:27:07,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:27:07,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:27:07,426 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_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/sv-benchmarks/c/eca-rers2012/Problem10_label13.c[6334,6347] [2021-11-23 02:27:07,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:27:07,666 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:27:07,711 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_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/sv-benchmarks/c/eca-rers2012/Problem10_label13.c[6334,6347] [2021-11-23 02:27:07,827 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:27:07,866 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:27:07,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:07 WrapperNode [2021-11-23 02:27:07,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:27:07,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:27:07,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:27:07,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:27:07,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:07" (1/1) ... [2021-11-23 02:27:07,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:07" (1/1) ... [2021-11-23 02:27:08,005 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2021-11-23 02:27:08,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:27:08,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:27:08,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:27:08,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:27:08,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:07" (1/1) ... [2021-11-23 02:27:08,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:07" (1/1) ... [2021-11-23 02:27:08,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:07" (1/1) ... [2021-11-23 02:27:08,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:07" (1/1) ... [2021-11-23 02:27:08,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:07" (1/1) ... [2021-11-23 02:27:08,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:07" (1/1) ... [2021-11-23 02:27:08,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:07" (1/1) ... [2021-11-23 02:27:08,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:27:08,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:27:08,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:27:08,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:27:08,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:07" (1/1) ... [2021-11-23 02:27:08,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:27:08,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:27:08,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:27:08,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:27:08,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:27:08,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:27:08,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:27:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:27:08,335 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:27:08,337 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:27:10,020 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:27:12,528 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:27:12,529 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 02:27:12,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:27:12 BoogieIcfgContainer [2021-11-23 02:27:12,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:27:12,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:27:12,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:27:12,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:27:12,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:27:07" (1/3) ... [2021-11-23 02:27:12,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106c4aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:27:12, skipping insertion in model container [2021-11-23 02:27:12,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:07" (2/3) ... [2021-11-23 02:27:12,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106c4aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:27:12, skipping insertion in model container [2021-11-23 02:27:12,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:27:12" (3/3) ... [2021-11-23 02:27:12,547 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label13.c [2021-11-23 02:27:12,554 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:27:12,555 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:27:12,613 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:27:12,623 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 02:27:12,624 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:27:12,643 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:27:12,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 02:27:12,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:27:12,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-23 02:27:12,653 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:27:12,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:27:12,662 INFO L85 PathProgramCache]: Analyzing trace with hash 886109931, now seen corresponding path program 1 times [2021-11-23 02:27:12,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:27:12,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231950414] [2021-11-23 02:27:12,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:27:12,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:27:12,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:27:12,968 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 02:27:12,969 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:27:12,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231950414] [2021-11-23 02:27:12,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231950414] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:27:12,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:27:12,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:27:12,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861383340] [2021-11-23 02:27:12,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:27:12,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:27:12,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:27:13,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:27:13,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:27:13,034 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 02:27:13,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:27:13,208 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-11-23 02:27:13,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:27:13,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-23 02:27:13,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:27:13,224 INFO L225 Difference]: With dead ends: 23 [2021-11-23 02:27:13,224 INFO L226 Difference]: Without dead ends: 11 [2021-11-23 02:27:13,228 INFO L932 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 [2021-11-23 02:27:13,236 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:27:13,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:27:13,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-23 02:27:13,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-11-23 02:27:13,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:27:13,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-11-23 02:27:13,294 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-11-23 02:27:13,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:27:13,295 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-11-23 02:27:13,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 02:27:13,296 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-11-23 02:27:13,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 02:27:13,296 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:27:13,297 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-11-23 02:27:13,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:27:13,299 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:27:13,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:27:13,304 INFO L85 PathProgramCache]: Analyzing trace with hash 425647706, now seen corresponding path program 1 times [2021-11-23 02:27:13,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:27:13,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019395670] [2021-11-23 02:27:13,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:27:13,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:27:13,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:27:13,976 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:27:13,976 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:27:13,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019395670] [2021-11-23 02:27:13,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019395670] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:27:13,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714552785] [2021-11-23 02:27:13,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:27:13,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:27:13,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:27:13,981 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:27:14,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:27:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:27:14,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 02:27:14,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:27:34,927 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:27:34,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:28:03,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:28:03,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714552785] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 02:28:03,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-23 02:28:03,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 8 [2021-11-23 02:28:03,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656337517] [2021-11-23 02:28:03,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:28:03,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:28:03,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:28:03,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:28:03,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:28:03,811 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:28:03,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:03,860 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-11-23 02:28:03,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:28:03,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-23 02:28:03,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:03,863 INFO L225 Difference]: With dead ends: 10 [2021-11-23 02:28:03,863 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 02:28:03,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:28:03,866 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:03,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:28:03,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 02:28:03,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 02:28:03,870 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 02:28:03,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 02:28:03,871 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-11-23 02:28:03,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:03,871 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 02:28:03,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:28:03,872 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 02:28:03,872 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 02:28:03,875 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:28:03,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:28:04,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:28:04,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 02:28:04,120 INFO L858 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-11-23 02:28:04,120 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 02:28:04,121 INFO L854 garLoopResultBuilder]: At program point L178-1(lines 30 584) the Hoare annotation is: (or (not (= ~a19~0 6)) (< 218 ~a1~0) (<= ~a1~0 38)) [2021-11-23 02:28:04,121 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-11-23 02:28:04,121 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 02:28:04,122 INFO L861 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-11-23 02:28:04,122 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 02:28:04,122 INFO L854 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (or (not (= ~a19~0 6)) (< 218 ~a1~0) (<= ~a1~0 38)) [2021-11-23 02:28:04,123 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 179) no Hoare annotation was computed. [2021-11-23 02:28:04,128 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 02:28:04,130 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:28:04,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:28:04 BoogieIcfgContainer [2021-11-23 02:28:04,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:28:04,153 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:28:04,153 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:28:04,153 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:28:04,154 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:27:12" (3/4) ... [2021-11-23 02:28:04,159 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 02:28:04,191 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 184 nodes and edges [2021-11-23 02:28:04,194 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-11-23 02:28:04,197 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-23 02:28:04,200 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:28:04,397 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:28:04,397 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:28:04,398 INFO L158 Benchmark]: Toolchain (without parser) took 57370.31ms. Allocated memory was 123.7MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 96.3MB in the beginning and 956.4MB in the end (delta: -860.0MB). Peak memory consumption was 611.7MB. Max. memory is 16.1GB. [2021-11-23 02:28:04,399 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 86.0MB. Free memory was 52.2MB in the beginning and 52.1MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:28:04,399 INFO L158 Benchmark]: CACSL2BoogieTranslator took 835.49ms. Allocated memory is still 123.7MB. Free memory was 96.1MB in the beginning and 69.4MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-23 02:28:04,400 INFO L158 Benchmark]: Boogie Procedure Inliner took 136.66ms. Allocated memory is still 123.7MB. Free memory was 69.2MB in the beginning and 61.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 02:28:04,400 INFO L158 Benchmark]: Boogie Preprocessor took 125.98ms. Allocated memory is still 123.7MB. Free memory was 61.3MB in the beginning and 56.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 02:28:04,401 INFO L158 Benchmark]: RCFGBuilder took 4399.32ms. Allocated memory was 123.7MB in the beginning and 192.9MB in the end (delta: 69.2MB). Free memory was 56.5MB in the beginning and 74.5MB in the end (delta: -18.1MB). Peak memory consumption was 75.8MB. Max. memory is 16.1GB. [2021-11-23 02:28:04,403 INFO L158 Benchmark]: TraceAbstraction took 51614.83ms. Allocated memory was 192.9MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 74.5MB in the beginning and 973.1MB in the end (delta: -898.6MB). Peak memory consumption was 502.3MB. Max. memory is 16.1GB. [2021-11-23 02:28:04,404 INFO L158 Benchmark]: Witness Printer took 244.53ms. Allocated memory is still 1.6GB. Free memory was 973.1MB in the beginning and 956.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 02:28:04,408 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 86.0MB. Free memory was 52.2MB in the beginning and 52.1MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 835.49ms. Allocated memory is still 123.7MB. Free memory was 96.1MB in the beginning and 69.4MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 136.66ms. Allocated memory is still 123.7MB. Free memory was 69.2MB in the beginning and 61.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 125.98ms. Allocated memory is still 123.7MB. Free memory was 61.3MB in the beginning and 56.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 4399.32ms. Allocated memory was 123.7MB in the beginning and 192.9MB in the end (delta: 69.2MB). Free memory was 56.5MB in the beginning and 74.5MB in the end (delta: -18.1MB). Peak memory consumption was 75.8MB. Max. memory is 16.1GB. * TraceAbstraction took 51614.83ms. Allocated memory was 192.9MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 74.5MB in the beginning and 973.1MB in the end (delta: -898.6MB). Peak memory consumption was 502.3MB. Max. memory is 16.1GB. * Witness Printer took 244.53ms. Allocated memory is still 1.6GB. Free memory was 973.1MB in the beginning and 956.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. 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: 179]: 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 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 51.5s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 5 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=1, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 23 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 50.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 502 SizeOfPredicates, 6 NumberOfNonLiveVariables, 191 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 3/9 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: 592]: Loop Invariant Derived loop invariant: (!(a19 == 6) || 218 < a1) || a1 <= 38 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (!(a19 == 6) || 218 < a1) || a1 <= 38 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-23 02:28:04,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d5e5f7-eb1a-4d4b-9838-ff4f24b21c4e/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