./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/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 9ae694734f109522fa1ca97e7fe166df1ef5d566 ........................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/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 9ae694734f109522fa1ca97e7fe166df1ef5d566 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 06:57:54,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 06:57:54,200 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 06:57:54,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 06:57:54,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 06:57:54,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 06:57:54,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 06:57:54,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 06:57:54,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 06:57:54,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 06:57:54,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 06:57:54,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 06:57:54,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 06:57:54,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 06:57:54,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 06:57:54,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 06:57:54,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 06:57:54,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 06:57:54,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 06:57:54,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 06:57:54,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 06:57:54,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 06:57:54,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 06:57:54,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 06:57:54,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 06:57:54,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 06:57:54,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 06:57:54,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 06:57:54,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 06:57:54,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 06:57:54,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 06:57:54,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 06:57:54,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 06:57:54,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 06:57:54,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 06:57:54,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 06:57:54,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 06:57:54,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 06:57:54,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 06:57:54,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 06:57:54,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 06:57:54,254 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 06:57:54,270 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 06:57:54,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 06:57:54,271 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 06:57:54,271 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 06:57:54,271 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 06:57:54,271 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 06:57:54,271 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 06:57:54,271 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 06:57:54,271 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 06:57:54,272 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 06:57:54,272 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 06:57:54,272 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 06:57:54,272 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 06:57:54,272 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 06:57:54,272 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 06:57:54,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 06:57:54,273 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 06:57:54,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 06:57:54,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 06:57:54,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 06:57:54,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 06:57:54,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 06:57:54,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 06:57:54,274 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 06:57:54,274 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 06:57:54,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 06:57:54,274 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 06:57:54,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 06:57:54,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 06:57:54,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 06:57:54,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 06:57:54,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 06:57:54,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 06:57:54,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 06:57:54,275 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 06:57:54,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 06:57:54,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 06:57:54,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 06:57:54,276 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 06:57:54,276 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_7ccad3e9-e584-406c-be61-59ed760d8253/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ae694734f109522fa1ca97e7fe166df1ef5d566 [2020-12-09 06:57:54,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 06:57:54,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 06:57:54,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 06:57:54,471 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 06:57:54,471 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 06:57:54,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/../../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c [2020-12-09 06:57:54,513 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/data/d088073fa/9e16a5c9b8614d8cb32227d3cf98c1ea/FLAG5ebb65676 [2020-12-09 06:57:54,919 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 06:57:54,919 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c [2020-12-09 06:57:54,928 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/data/d088073fa/9e16a5c9b8614d8cb32227d3cf98c1ea/FLAG5ebb65676 [2020-12-09 06:57:54,939 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/data/d088073fa/9e16a5c9b8614d8cb32227d3cf98c1ea [2020-12-09 06:57:54,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 06:57:54,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 06:57:54,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 06:57:54,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 06:57:54,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 06:57:54,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:57:54" (1/1) ... [2020-12-09 06:57:54,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d05e362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:54, skipping insertion in model container [2020-12-09 06:57:54,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:57:54" (1/1) ... [2020-12-09 06:57:54,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 06:57:54,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 06:57:55,158 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c[11342,11355] [2020-12-09 06:57:55,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:57:55,168 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-12-09 06:57:55,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7852d302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:55, skipping insertion in model container [2020-12-09 06:57:55,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 06:57:55,168 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-12-09 06:57:55,170 INFO L168 Benchmark]: Toolchain (without parser) took 226.29 ms. Allocated memory is still 115.3 MB. Free memory was 86.3 MB in the beginning and 74.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 06:57:55,171 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 115.3 MB. Free memory is still 95.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:57:55,171 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.93 ms. Allocated memory is still 115.3 MB. Free memory was 86.1 MB in the beginning and 74.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 06:57:55,172 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 115.3 MB. Free memory is still 95.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 223.93 ms. Allocated memory is still 115.3 MB. Free memory was 86.1 MB in the beginning and 74.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 404]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 06:57:56,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 06:57:56,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 06:57:56,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 06:57:56,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 06:57:56,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 06:57:56,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 06:57:56,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 06:57:56,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 06:57:56,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 06:57:56,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 06:57:56,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 06:57:56,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 06:57:56,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 06:57:56,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 06:57:56,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 06:57:56,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 06:57:56,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 06:57:56,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 06:57:56,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 06:57:56,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 06:57:56,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 06:57:56,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 06:57:56,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 06:57:56,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 06:57:56,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 06:57:56,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 06:57:56,538 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 06:57:56,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 06:57:56,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 06:57:56,540 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 06:57:56,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 06:57:56,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 06:57:56,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 06:57:56,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 06:57:56,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 06:57:56,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 06:57:56,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 06:57:56,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 06:57:56,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 06:57:56,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 06:57:56,547 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 06:57:56,567 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 06:57:56,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 06:57:56,568 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 06:57:56,568 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 06:57:56,569 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 06:57:56,569 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 06:57:56,569 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 06:57:56,569 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 06:57:56,569 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 06:57:56,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 06:57:56,570 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 06:57:56,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 06:57:56,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 06:57:56,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 06:57:56,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 06:57:56,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 06:57:56,571 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 06:57:56,571 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 06:57:56,571 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 06:57:56,571 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 06:57:56,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 06:57:56,572 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 06:57:56,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 06:57:56,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 06:57:56,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 06:57:56,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 06:57:56,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 06:57:56,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 06:57:56,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 06:57:56,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 06:57:56,573 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 06:57:56,573 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 06:57:56,573 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 06:57:56,573 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 06:57:56,574 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 06:57:56,574 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_7ccad3e9-e584-406c-be61-59ed760d8253/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ae694734f109522fa1ca97e7fe166df1ef5d566 [2020-12-09 06:57:56,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 06:57:56,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 06:57:56,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 06:57:56,813 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 06:57:56,813 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 06:57:56,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/../../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c [2020-12-09 06:57:56,853 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/data/2fce0a533/53e6689aa5c0421e97a2ce163773402c/FLAG0dc757e8a [2020-12-09 06:57:57,271 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 06:57:57,271 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c [2020-12-09 06:57:57,278 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/data/2fce0a533/53e6689aa5c0421e97a2ce163773402c/FLAG0dc757e8a [2020-12-09 06:57:57,288 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/data/2fce0a533/53e6689aa5c0421e97a2ce163773402c [2020-12-09 06:57:57,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 06:57:57,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 06:57:57,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 06:57:57,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 06:57:57,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 06:57:57,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:57:57" (1/1) ... [2020-12-09 06:57:57,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a3cedb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:57, skipping insertion in model container [2020-12-09 06:57:57,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:57:57" (1/1) ... [2020-12-09 06:57:57,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 06:57:57,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 06:57:57,531 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c[11342,11355] [2020-12-09 06:57:57,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:57:57,549 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-12-09 06:57:57,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 06:57:57,620 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c[11342,11355] [2020-12-09 06:57:57,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:57:57,626 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 06:57:57,685 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c[11342,11355] [2020-12-09 06:57:57,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:57:57,708 INFO L208 MainTranslator]: Completed translation [2020-12-09 06:57:57,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:57 WrapperNode [2020-12-09 06:57:57,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 06:57:57,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 06:57:57,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 06:57:57,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 06:57:57,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:57" (1/1) ... [2020-12-09 06:57:57,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:57" (1/1) ... [2020-12-09 06:57:57,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 06:57:57,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 06:57:57,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 06:57:57,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 06:57:57,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:57" (1/1) ... [2020-12-09 06:57:57,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:57" (1/1) ... [2020-12-09 06:57:57,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:57" (1/1) ... [2020-12-09 06:57:57,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:57" (1/1) ... [2020-12-09 06:57:57,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:57" (1/1) ... [2020-12-09 06:57:57,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:57" (1/1) ... [2020-12-09 06:57:57,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:57" (1/1) ... [2020-12-09 06:57:57,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 06:57:57,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 06:57:57,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 06:57:57,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 06:57:57,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/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 [2020-12-09 06:57:57,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-09 06:57:57,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-12-09 06:57:57,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2020-12-09 06:57:57,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 06:57:57,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2020-12-09 06:57:57,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-09 06:57:57,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 06:57:57,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 06:57:57,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2020-12-09 06:57:57,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-09 06:57:57,921 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-12-09 06:57:57,921 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2020-12-09 06:57:57,921 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2020-12-09 06:57:57,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-09 06:57:57,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 06:57:57,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 06:57:57,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-12-09 06:57:57,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 06:57:57,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 06:57:58,791 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 06:57:58,791 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2020-12-09 06:57:58,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:57:58 BoogieIcfgContainer [2020-12-09 06:57:58,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 06:57:58,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 06:57:58,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 06:57:58,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 06:57:58,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:57:57" (1/3) ... [2020-12-09 06:57:58,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427f997d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:57:58, skipping insertion in model container [2020-12-09 06:57:58,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:57" (2/3) ... [2020-12-09 06:57:58,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427f997d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:57:58, skipping insertion in model container [2020-12-09 06:57:58,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:57:58" (3/3) ... [2020-12-09 06:57:58,800 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_2.c [2020-12-09 06:57:58,810 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 06:57:58,812 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 06:57:58,819 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 06:57:58,838 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 06:57:58,838 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 06:57:58,838 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 06:57:58,838 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 06:57:58,838 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 06:57:58,838 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 06:57:58,838 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 06:57:58,838 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 06:57:58,854 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states. [2020-12-09 06:57:58,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-09 06:57:58,862 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:57:58,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:57:58,863 INFO L429 AbstractCegarLoop]: === Iteration 1 === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:57:58,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:57:58,869 INFO L82 PathProgramCache]: Analyzing trace with hash 437048265, now seen corresponding path program 1 times [2020-12-09 06:57:58,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:57:58,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11544668] [2020-12-09 06:57:58,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 06:57:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:57:59,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 06:57:59,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:57:59,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:57:59,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:57:59,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11544668] [2020-12-09 06:57:59,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:57:59,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:57:59,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419522702] [2020-12-09 06:57:59,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 06:57:59,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:57:59,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 06:57:59,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 06:57:59,152 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 2 states. [2020-12-09 06:57:59,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:57:59,180 INFO L93 Difference]: Finished difference Result 347 states and 566 transitions. [2020-12-09 06:57:59,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 06:57:59,180 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2020-12-09 06:57:59,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:57:59,188 INFO L225 Difference]: With dead ends: 347 [2020-12-09 06:57:59,188 INFO L226 Difference]: Without dead ends: 172 [2020-12-09 06:57:59,191 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 06:57:59,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-12-09 06:57:59,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-12-09 06:57:59,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-12-09 06:57:59,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 268 transitions. [2020-12-09 06:57:59,226 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 268 transitions. Word has length 19 [2020-12-09 06:57:59,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:57:59,226 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 268 transitions. [2020-12-09 06:57:59,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 06:57:59,226 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 268 transitions. [2020-12-09 06:57:59,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-09 06:57:59,228 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:57:59,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:57:59,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 06:57:59,429 INFO L429 AbstractCegarLoop]: === Iteration 2 === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:57:59,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:57:59,431 INFO L82 PathProgramCache]: Analyzing trace with hash -794654387, now seen corresponding path program 1 times [2020-12-09 06:57:59,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:57:59,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594858675] [2020-12-09 06:57:59,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 06:57:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:57:59,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 06:57:59,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:57:59,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:57:59,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:57:59,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594858675] [2020-12-09 06:57:59,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:57:59,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 06:57:59,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639169204] [2020-12-09 06:57:59,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:57:59,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:57:59,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:57:59,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:57:59,761 INFO L87 Difference]: Start difference. First operand 172 states and 268 transitions. Second operand 3 states. [2020-12-09 06:57:59,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:57:59,834 INFO L93 Difference]: Finished difference Result 486 states and 767 transitions. [2020-12-09 06:57:59,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:57:59,835 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-09 06:57:59,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:57:59,838 INFO L225 Difference]: With dead ends: 486 [2020-12-09 06:57:59,838 INFO L226 Difference]: Without dead ends: 319 [2020-12-09 06:57:59,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:57:59,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2020-12-09 06:57:59,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 173. [2020-12-09 06:57:59,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-12-09 06:57:59,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 269 transitions. [2020-12-09 06:57:59,853 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 269 transitions. Word has length 19 [2020-12-09 06:57:59,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:57:59,854 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 269 transitions. [2020-12-09 06:57:59,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:57:59,854 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 269 transitions. [2020-12-09 06:57:59,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 06:57:59,855 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:57:59,855 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] [2020-12-09 06:58:00,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 06:58:00,057 INFO L429 AbstractCegarLoop]: === Iteration 3 === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:58:00,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:58:00,059 INFO L82 PathProgramCache]: Analyzing trace with hash 57389583, now seen corresponding path program 1 times [2020-12-09 06:58:00,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:58:00,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088718078] [2020-12-09 06:58:00,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 06:58:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:58:00,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 06:58:00,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:58:00,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:58:00,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:58:00,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:58:00,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088718078] [2020-12-09 06:58:00,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [83526403] [2020-12-09 06:58:00,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt [2020-12-09 06:58:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:58:00,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 06:58:00,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:58:00,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-09 06:58:00,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:58:00,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 06:58:00,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2020-12-09 06:58:00,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552993257] [2020-12-09 06:58:00,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:58:00,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:58:00,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:58:00,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-09 06:58:00,595 INFO L87 Difference]: Start difference. First operand 173 states and 269 transitions. Second operand 4 states. [2020-12-09 06:58:00,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:58:00,639 INFO L93 Difference]: Finished difference Result 210 states and 313 transitions. [2020-12-09 06:58:00,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 06:58:00,640 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-12-09 06:58:00,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:58:00,642 INFO L225 Difference]: With dead ends: 210 [2020-12-09 06:58:00,642 INFO L226 Difference]: Without dead ends: 188 [2020-12-09 06:58:00,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-09 06:58:00,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-12-09 06:58:00,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 186. [2020-12-09 06:58:00,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-12-09 06:58:00,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 285 transitions. [2020-12-09 06:58:00,656 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 285 transitions. Word has length 21 [2020-12-09 06:58:00,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:58:00,656 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 285 transitions. [2020-12-09 06:58:00,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:58:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 285 transitions. [2020-12-09 06:58:00,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-09 06:58:00,659 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:58:00,660 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:58:01,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3,5 cvc4 --incremental --print-success --lang smt [2020-12-09 06:58:01,063 INFO L429 AbstractCegarLoop]: === Iteration 4 === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:58:01,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:58:01,064 INFO L82 PathProgramCache]: Analyzing trace with hash 2115889006, now seen corresponding path program 1 times [2020-12-09 06:58:01,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:58:01,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396322052] [2020-12-09 06:58:01,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 06:58:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:58:01,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 06:58:01,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:58:01,320 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-09 06:58:01,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:58:01,343 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-09 06:58:01,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396322052] [2020-12-09 06:58:01,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1005762707] [2020-12-09 06:58:01,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt [2020-12-09 06:58:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:58:01,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 06:58:01,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:58:01,531 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-09 06:58:01,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:58:01,584 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-09 06:58:01,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002746387] [2020-12-09 06:58:01,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 06:58:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:58:01,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 06:58:01,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:58:01,775 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-09 06:58:01,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:58:01,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2020-12-09 06:58:01,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4, 6, 6] total 15 [2020-12-09 06:58:01,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897745158] [2020-12-09 06:58:01,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:58:01,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:58:01,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:58:01,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-12-09 06:58:01,777 INFO L87 Difference]: Start difference. First operand 186 states and 285 transitions. Second operand 3 states. [2020-12-09 06:58:01,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:58:01,785 INFO L93 Difference]: Finished difference Result 198 states and 299 transitions. [2020-12-09 06:58:01,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:58:01,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-09 06:58:01,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:58:01,786 INFO L225 Difference]: With dead ends: 198 [2020-12-09 06:58:01,786 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 06:58:01,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-12-09 06:58:01,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 06:58:01,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 06:58:01,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 06:58:01,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 06:58:01,788 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-12-09 06:58:01,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:58:01,788 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 06:58:01,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:58:01,788 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 06:58:01,789 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 06:58:02,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt,6 mathsat -unsat_core_generation=3,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 06:58:02,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 06:58:02,499 INFO L262 CegarLoopResult]: For program point L234(line 234) no Hoare annotation was computed. [2020-12-09 06:58:02,499 INFO L262 CegarLoopResult]: For program point L234-2(line 234) no Hoare annotation was computed. [2020-12-09 06:58:02,500 INFO L262 CegarLoopResult]: For program point L234-3(line 234) no Hoare annotation was computed. [2020-12-09 06:58:02,500 INFO L262 CegarLoopResult]: For program point L234-5(lines 234 246) no Hoare annotation was computed. [2020-12-09 06:58:02,500 INFO L262 CegarLoopResult]: For program point L234-6(line 234) no Hoare annotation was computed. [2020-12-09 06:58:02,500 INFO L262 CegarLoopResult]: For program point L234-8(line 234) no Hoare annotation was computed. [2020-12-09 06:58:02,500 INFO L262 CegarLoopResult]: For program point L234-9(line 234) no Hoare annotation was computed. [2020-12-09 06:58:02,500 INFO L262 CegarLoopResult]: For program point L234-11(lines 234 246) no Hoare annotation was computed. [2020-12-09 06:58:02,500 INFO L262 CegarLoopResult]: For program point L234-12(line 234) no Hoare annotation was computed. [2020-12-09 06:58:02,500 INFO L262 CegarLoopResult]: For program point L234-14(line 234) no Hoare annotation was computed. [2020-12-09 06:58:02,500 INFO L262 CegarLoopResult]: For program point L234-15(line 234) no Hoare annotation was computed. [2020-12-09 06:58:02,500 INFO L262 CegarLoopResult]: For program point L234-17(lines 234 246) no Hoare annotation was computed. [2020-12-09 06:58:02,500 INFO L262 CegarLoopResult]: For program point L234-18(line 234) no Hoare annotation was computed. [2020-12-09 06:58:02,501 INFO L262 CegarLoopResult]: For program point L234-20(line 234) no Hoare annotation was computed. [2020-12-09 06:58:02,501 INFO L262 CegarLoopResult]: For program point L234-21(line 234) no Hoare annotation was computed. [2020-12-09 06:58:02,501 INFO L262 CegarLoopResult]: For program point L234-23(lines 234 246) no Hoare annotation was computed. [2020-12-09 06:58:02,501 INFO L262 CegarLoopResult]: For program point L202(lines 202 208) no Hoare annotation was computed. [2020-12-09 06:58:02,501 INFO L262 CegarLoopResult]: For program point L202-2(lines 202 208) no Hoare annotation was computed. [2020-12-09 06:58:02,501 INFO L262 CegarLoopResult]: For program point L202-3(lines 202 208) no Hoare annotation was computed. [2020-12-09 06:58:02,501 INFO L262 CegarLoopResult]: For program point L202-5(lines 202 208) no Hoare annotation was computed. [2020-12-09 06:58:02,501 INFO L262 CegarLoopResult]: For program point L202-6(lines 202 208) no Hoare annotation was computed. [2020-12-09 06:58:02,501 INFO L262 CegarLoopResult]: For program point L202-8(lines 202 208) no Hoare annotation was computed. [2020-12-09 06:58:02,501 INFO L262 CegarLoopResult]: For program point L202-9(lines 202 208) no Hoare annotation was computed. [2020-12-09 06:58:02,501 INFO L262 CegarLoopResult]: For program point L202-11(lines 202 208) no Hoare annotation was computed. [2020-12-09 06:58:02,501 INFO L262 CegarLoopResult]: For program point L236(lines 236 241) no Hoare annotation was computed. [2020-12-09 06:58:02,502 INFO L262 CegarLoopResult]: For program point L236-1(lines 234 246) no Hoare annotation was computed. [2020-12-09 06:58:02,502 INFO L262 CegarLoopResult]: For program point L236-2(lines 236 241) no Hoare annotation was computed. [2020-12-09 06:58:02,502 INFO L262 CegarLoopResult]: For program point L236-3(lines 234 246) no Hoare annotation was computed. [2020-12-09 06:58:02,502 INFO L262 CegarLoopResult]: For program point L236-4(lines 236 241) no Hoare annotation was computed. [2020-12-09 06:58:02,502 INFO L262 CegarLoopResult]: For program point L236-5(lines 234 246) no Hoare annotation was computed. [2020-12-09 06:58:02,502 INFO L262 CegarLoopResult]: For program point L236-6(lines 236 241) no Hoare annotation was computed. [2020-12-09 06:58:02,502 INFO L262 CegarLoopResult]: For program point L236-7(lines 234 246) no Hoare annotation was computed. [2020-12-09 06:58:02,502 INFO L262 CegarLoopResult]: For program point L204(lines 204 207) no Hoare annotation was computed. [2020-12-09 06:58:02,502 INFO L262 CegarLoopResult]: For program point L204-1(lines 204 207) no Hoare annotation was computed. [2020-12-09 06:58:02,502 INFO L262 CegarLoopResult]: For program point L204-2(lines 204 207) no Hoare annotation was computed. [2020-12-09 06:58:02,502 INFO L262 CegarLoopResult]: For program point L204-3(lines 204 207) no Hoare annotation was computed. [2020-12-09 06:58:02,502 INFO L262 CegarLoopResult]: For program point L304(lines 304 307) no Hoare annotation was computed. [2020-12-09 06:58:02,502 INFO L262 CegarLoopResult]: For program point L371(lines 371 374) no Hoare annotation was computed. [2020-12-09 06:58:02,503 INFO L262 CegarLoopResult]: For program point L406-2(lines 406 416) no Hoare annotation was computed. [2020-12-09 06:58:02,503 INFO L265 CegarLoopResult]: At program point L406-3(lines 406 416) the Hoare annotation is: true [2020-12-09 06:58:02,503 INFO L265 CegarLoopResult]: At program point L406-4(lines 406 416) the Hoare annotation is: true [2020-12-09 06:58:02,503 INFO L262 CegarLoopResult]: For program point L308-1(lines 308 315) no Hoare annotation was computed. [2020-12-09 06:58:02,503 INFO L265 CegarLoopResult]: At program point L209(lines 209 225) the Hoare annotation is: true [2020-12-09 06:58:02,503 INFO L265 CegarLoopResult]: At program point L308-3(lines 308 315) the Hoare annotation is: true [2020-12-09 06:58:02,503 INFO L265 CegarLoopResult]: At program point L209-1(lines 209 225) the Hoare annotation is: true [2020-12-09 06:58:02,503 INFO L262 CegarLoopResult]: For program point L308-4(lines 308 315) no Hoare annotation was computed. [2020-12-09 06:58:02,503 INFO L265 CegarLoopResult]: At program point L209-2(lines 209 225) the Hoare annotation is: true [2020-12-09 06:58:02,503 INFO L265 CegarLoopResult]: At program point L209-3(lines 209 225) the Hoare annotation is: true [2020-12-09 06:58:02,504 INFO L262 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2020-12-09 06:58:02,504 INFO L262 CegarLoopResult]: For program point L408-2(lines 408 415) no Hoare annotation was computed. [2020-12-09 06:58:02,504 INFO L262 CegarLoopResult]: For program point L376-2(lines 376 393) no Hoare annotation was computed. [2020-12-09 06:58:02,504 INFO L265 CegarLoopResult]: At program point L376-3(lines 376 393) the Hoare annotation is: true [2020-12-09 06:58:02,504 INFO L262 CegarLoopResult]: For program point L376-4(lines 376 393) no Hoare annotation was computed. [2020-12-09 06:58:02,504 INFO L262 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-12-09 06:58:02,504 INFO L262 CegarLoopResult]: For program point L211-2(line 211) no Hoare annotation was computed. [2020-12-09 06:58:02,504 INFO L262 CegarLoopResult]: For program point L211-3(line 211) no Hoare annotation was computed. [2020-12-09 06:58:02,504 INFO L262 CegarLoopResult]: For program point L211-5(line 211) no Hoare annotation was computed. [2020-12-09 06:58:02,504 INFO L262 CegarLoopResult]: For program point L211-6(line 211) no Hoare annotation was computed. [2020-12-09 06:58:02,504 INFO L262 CegarLoopResult]: For program point L211-8(line 211) no Hoare annotation was computed. [2020-12-09 06:58:02,504 INFO L262 CegarLoopResult]: For program point L211-9(line 211) no Hoare annotation was computed. [2020-12-09 06:58:02,504 INFO L262 CegarLoopResult]: For program point L211-11(line 211) no Hoare annotation was computed. [2020-12-09 06:58:02,505 INFO L262 CegarLoopResult]: For program point L311(lines 311 314) no Hoare annotation was computed. [2020-12-09 06:58:02,505 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-09 06:58:02,505 INFO L262 CegarLoopResult]: For program point L212-2(line 212) no Hoare annotation was computed. [2020-12-09 06:58:02,505 INFO L262 CegarLoopResult]: For program point L212-4(line 212) no Hoare annotation was computed. [2020-12-09 06:58:02,505 INFO L262 CegarLoopResult]: For program point L212-6(line 212) no Hoare annotation was computed. [2020-12-09 06:58:02,505 INFO L262 CegarLoopResult]: For program point L378(lines 378 381) no Hoare annotation was computed. [2020-12-09 06:58:02,505 INFO L265 CegarLoopResult]: At program point L247(lines 193 248) the Hoare annotation is: true [2020-12-09 06:58:02,505 INFO L262 CegarLoopResult]: For program point L214(line 214) no Hoare annotation was computed. [2020-12-09 06:58:02,505 INFO L265 CegarLoopResult]: At program point L247-1(lines 193 248) the Hoare annotation is: true [2020-12-09 06:58:02,505 INFO L265 CegarLoopResult]: At program point L247-2(lines 193 248) the Hoare annotation is: true [2020-12-09 06:58:02,505 INFO L262 CegarLoopResult]: For program point L214-2(line 214) no Hoare annotation was computed. [2020-12-09 06:58:02,505 INFO L265 CegarLoopResult]: At program point L247-3(lines 193 248) the Hoare annotation is: true [2020-12-09 06:58:02,506 INFO L262 CegarLoopResult]: For program point L214-3(line 214) no Hoare annotation was computed. [2020-12-09 06:58:02,506 INFO L262 CegarLoopResult]: For program point L214-5(line 214) no Hoare annotation was computed. [2020-12-09 06:58:02,506 INFO L262 CegarLoopResult]: For program point L214-6(line 214) no Hoare annotation was computed. [2020-12-09 06:58:02,506 INFO L262 CegarLoopResult]: For program point L214-8(line 214) no Hoare annotation was computed. [2020-12-09 06:58:02,506 INFO L262 CegarLoopResult]: For program point L214-9(line 214) no Hoare annotation was computed. [2020-12-09 06:58:02,506 INFO L262 CegarLoopResult]: For program point L214-11(line 214) no Hoare annotation was computed. [2020-12-09 06:58:02,506 INFO L262 CegarLoopResult]: For program point L215(line 215) no Hoare annotation was computed. [2020-12-09 06:58:02,506 INFO L262 CegarLoopResult]: For program point L215-2(line 215) no Hoare annotation was computed. [2020-12-09 06:58:02,506 INFO L262 CegarLoopResult]: For program point L215-4(line 215) no Hoare annotation was computed. [2020-12-09 06:58:02,506 INFO L262 CegarLoopResult]: For program point L215-6(line 215) no Hoare annotation was computed. [2020-12-09 06:58:02,506 INFO L262 CegarLoopResult]: For program point L316(line 316) no Hoare annotation was computed. [2020-12-09 06:58:02,506 INFO L262 CegarLoopResult]: For program point L316-2(line 316) no Hoare annotation was computed. [2020-12-09 06:58:02,506 INFO L262 CegarLoopResult]: For program point L217(line 217) no Hoare annotation was computed. [2020-12-09 06:58:02,507 INFO L262 CegarLoopResult]: For program point L316-3(line 316) no Hoare annotation was computed. [2020-12-09 06:58:02,507 INFO L262 CegarLoopResult]: For program point L217-2(line 217) no Hoare annotation was computed. [2020-12-09 06:58:02,507 INFO L262 CegarLoopResult]: For program point L316-5(lines 316 328) no Hoare annotation was computed. [2020-12-09 06:58:02,507 INFO L262 CegarLoopResult]: For program point L217-3(line 217) no Hoare annotation was computed. [2020-12-09 06:58:02,507 INFO L262 CegarLoopResult]: For program point L217-5(line 217) no Hoare annotation was computed. [2020-12-09 06:58:02,507 INFO L262 CegarLoopResult]: For program point L217-6(line 217) no Hoare annotation was computed. [2020-12-09 06:58:02,507 INFO L262 CegarLoopResult]: For program point L217-8(line 217) no Hoare annotation was computed. [2020-12-09 06:58:02,507 INFO L262 CegarLoopResult]: For program point L217-9(line 217) no Hoare annotation was computed. [2020-12-09 06:58:02,507 INFO L262 CegarLoopResult]: For program point L217-11(line 217) no Hoare annotation was computed. [2020-12-09 06:58:02,507 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 06:58:02,507 INFO L262 CegarLoopResult]: For program point L218(line 218) no Hoare annotation was computed. [2020-12-09 06:58:02,507 INFO L262 CegarLoopResult]: For program point L218-2(line 218) no Hoare annotation was computed. [2020-12-09 06:58:02,507 INFO L262 CegarLoopResult]: For program point L218-4(line 218) no Hoare annotation was computed. [2020-12-09 06:58:02,508 INFO L262 CegarLoopResult]: For program point L218-6(line 218) no Hoare annotation was computed. [2020-12-09 06:58:02,508 INFO L262 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-12-09 06:58:02,508 INFO L262 CegarLoopResult]: For program point L318(lines 318 323) no Hoare annotation was computed. [2020-12-09 06:58:02,508 INFO L262 CegarLoopResult]: For program point L318-1(lines 316 328) no Hoare annotation was computed. [2020-12-09 06:58:02,508 INFO L265 CegarLoopResult]: At program point L418(lines 427 458) the Hoare annotation is: true [2020-12-09 06:58:02,508 INFO L262 CegarLoopResult]: For program point L352-2(lines 352 355) no Hoare annotation was computed. [2020-12-09 06:58:02,508 INFO L265 CegarLoopResult]: At program point L352-3(lines 352 355) the Hoare annotation is: true [2020-12-09 06:58:02,508 INFO L262 CegarLoopResult]: For program point L352-4(lines 332 399) no Hoare annotation was computed. [2020-12-09 06:58:02,508 INFO L262 CegarLoopResult]: For program point L220(line 220) no Hoare annotation was computed. [2020-12-09 06:58:02,508 INFO L262 CegarLoopResult]: For program point L220-2(line 220) no Hoare annotation was computed. [2020-12-09 06:58:02,508 INFO L262 CegarLoopResult]: For program point L220-3(line 220) no Hoare annotation was computed. [2020-12-09 06:58:02,508 INFO L262 CegarLoopResult]: For program point L220-5(line 220) no Hoare annotation was computed. [2020-12-09 06:58:02,508 INFO L262 CegarLoopResult]: For program point L220-6(line 220) no Hoare annotation was computed. [2020-12-09 06:58:02,508 INFO L262 CegarLoopResult]: For program point L220-8(line 220) no Hoare annotation was computed. [2020-12-09 06:58:02,509 INFO L262 CegarLoopResult]: For program point L220-9(line 220) no Hoare annotation was computed. [2020-12-09 06:58:02,509 INFO L262 CegarLoopResult]: For program point L220-11(line 220) no Hoare annotation was computed. [2020-12-09 06:58:02,509 INFO L262 CegarLoopResult]: For program point L452(lines 452 455) no Hoare annotation was computed. [2020-12-09 06:58:02,509 INFO L262 CegarLoopResult]: For program point L221(line 221) no Hoare annotation was computed. [2020-12-09 06:58:02,509 INFO L262 CegarLoopResult]: For program point L221-2(line 221) no Hoare annotation was computed. [2020-12-09 06:58:02,509 INFO L262 CegarLoopResult]: For program point L221-4(line 221) no Hoare annotation was computed. [2020-12-09 06:58:02,509 INFO L262 CegarLoopResult]: For program point L221-6(line 221) no Hoare annotation was computed. [2020-12-09 06:58:02,509 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 06:58:02,509 INFO L262 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2020-12-09 06:58:02,509 INFO L262 CegarLoopResult]: For program point L223-2(line 223) no Hoare annotation was computed. [2020-12-09 06:58:02,509 INFO L262 CegarLoopResult]: For program point L223-4(line 223) no Hoare annotation was computed. [2020-12-09 06:58:02,509 INFO L262 CegarLoopResult]: For program point L223-6(line 223) no Hoare annotation was computed. [2020-12-09 06:58:02,509 INFO L262 CegarLoopResult]: For program point L389(lines 389 392) no Hoare annotation was computed. [2020-12-09 06:58:02,510 INFO L262 CegarLoopResult]: For program point L356(lines 356 397) no Hoare annotation was computed. [2020-12-09 06:58:02,510 INFO L262 CegarLoopResult]: For program point L358-2(lines 358 396) no Hoare annotation was computed. [2020-12-09 06:58:02,510 INFO L265 CegarLoopResult]: At program point L358-3(lines 358 396) the Hoare annotation is: true [2020-12-09 06:58:02,510 INFO L262 CegarLoopResult]: For program point L226-1(lines 226 233) no Hoare annotation was computed. [2020-12-09 06:58:02,510 INFO L265 CegarLoopResult]: At program point L226-3(lines 226 233) the Hoare annotation is: true [2020-12-09 06:58:02,510 INFO L262 CegarLoopResult]: For program point L226-4(lines 226 233) no Hoare annotation was computed. [2020-12-09 06:58:02,510 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 06:58:02,510 INFO L262 CegarLoopResult]: For program point L226-6(lines 226 233) no Hoare annotation was computed. [2020-12-09 06:58:02,510 INFO L265 CegarLoopResult]: At program point L226-8(lines 226 233) the Hoare annotation is: true [2020-12-09 06:58:02,510 INFO L262 CegarLoopResult]: For program point L226-9(lines 226 233) no Hoare annotation was computed. [2020-12-09 06:58:02,510 INFO L262 CegarLoopResult]: For program point L226-11(lines 226 233) no Hoare annotation was computed. [2020-12-09 06:58:02,510 INFO L265 CegarLoopResult]: At program point L226-13(lines 226 233) the Hoare annotation is: true [2020-12-09 06:58:02,510 INFO L262 CegarLoopResult]: For program point L226-14(lines 226 233) no Hoare annotation was computed. [2020-12-09 06:58:02,511 INFO L262 CegarLoopResult]: For program point L226-16(lines 226 233) no Hoare annotation was computed. [2020-12-09 06:58:02,511 INFO L265 CegarLoopResult]: At program point L226-18(lines 226 233) the Hoare annotation is: true [2020-12-09 06:58:02,511 INFO L262 CegarLoopResult]: For program point L226-19(lines 226 233) no Hoare annotation was computed. [2020-12-09 06:58:02,511 INFO L262 CegarLoopResult]: For program point L361(lines 361 364) no Hoare annotation was computed. [2020-12-09 06:58:02,511 INFO L262 CegarLoopResult]: For program point L229(lines 229 232) no Hoare annotation was computed. [2020-12-09 06:58:02,511 INFO L262 CegarLoopResult]: For program point L229-1(lines 229 232) no Hoare annotation was computed. [2020-12-09 06:58:02,511 INFO L262 CegarLoopResult]: For program point L229-2(lines 229 232) no Hoare annotation was computed. [2020-12-09 06:58:02,511 INFO L262 CegarLoopResult]: For program point L229-3(lines 229 232) no Hoare annotation was computed. [2020-12-09 06:58:02,511 INFO L265 CegarLoopResult]: At program point L329(lines 300 330) the Hoare annotation is: true [2020-12-09 06:58:02,511 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 06:58:02,511 INFO L262 CegarLoopResult]: For program point L198(lines 198 201) no Hoare annotation was computed. [2020-12-09 06:58:02,512 INFO L262 CegarLoopResult]: For program point L198-1(lines 198 201) no Hoare annotation was computed. [2020-12-09 06:58:02,512 INFO L262 CegarLoopResult]: For program point L198-2(lines 198 201) no Hoare annotation was computed. [2020-12-09 06:58:02,512 INFO L262 CegarLoopResult]: For program point L198-3(lines 198 201) no Hoare annotation was computed. [2020-12-09 06:58:02,512 INFO L265 CegarLoopResult]: At program point L398(lines 331 399) the Hoare annotation is: true [2020-12-09 06:58:02,512 INFO L262 CegarLoopResult]: For program point L365(lines 365 368) no Hoare annotation was computed. [2020-12-09 06:58:02,512 INFO L262 CegarLoopResult]: For program point L461(lines 461 464) no Hoare annotation was computed. [2020-12-09 06:58:02,512 INFO L262 CegarLoopResult]: For program point L11(lines 11 14) no Hoare annotation was computed. [2020-12-09 06:58:02,512 INFO L258 CegarLoopResult]: At program point L461-2(lines 459 466) the Hoare annotation is: (and (= (_ bv1 32) Id_MCDC_95___VERIFIER_assert_~Id_MCDC_103) (or (not (= (_ bv4 32) |Id_MCDC_95_#in~Id_MCDC_93|)) (= (_ bv4 32) Id_MCDC_95_~Id_MCDC_93))) [2020-12-09 06:58:02,512 INFO L262 CegarLoopResult]: For program point L11-2(lines 11 14) no Hoare annotation was computed. [2020-12-09 06:58:02,512 INFO L262 CegarLoopResult]: For program point L288(lines 288 295) no Hoare annotation was computed. [2020-12-09 06:58:02,512 INFO L262 CegarLoopResult]: For program point L255(lines 255 269) no Hoare annotation was computed. [2020-12-09 06:58:02,512 INFO L262 CegarLoopResult]: For program point L288-2(lines 288 295) no Hoare annotation was computed. [2020-12-09 06:58:02,513 INFO L262 CegarLoopResult]: For program point L284(lines 284 287) no Hoare annotation was computed. [2020-12-09 06:58:02,513 INFO L265 CegarLoopResult]: At program point Id_MCDC_95ENTRY(lines 280 299) the Hoare annotation is: true [2020-12-09 06:58:02,513 INFO L262 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-12-09 06:58:02,513 INFO L262 CegarLoopResult]: For program point Id_MCDC_95EXIT(lines 280 299) no Hoare annotation was computed. [2020-12-09 06:58:02,513 INFO L262 CegarLoopResult]: For program point L9(lines 9 15) no Hoare annotation was computed. [2020-12-09 06:58:02,513 INFO L262 CegarLoopResult]: For program point Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION(line 463) no Hoare annotation was computed. [2020-12-09 06:58:02,513 INFO L262 CegarLoopResult]: For program point L9-1(lines 9 15) no Hoare annotation was computed. [2020-12-09 06:58:02,513 INFO L262 CegarLoopResult]: For program point L261(lines 261 269) no Hoare annotation was computed. [2020-12-09 06:58:02,513 INFO L258 CegarLoopResult]: At program point L290(line 290) the Hoare annotation is: (or (not (= (_ bv4 32) |Id_MCDC_95_#in~Id_MCDC_93|)) (= (_ bv4 32) Id_MCDC_95_~Id_MCDC_93)) [2020-12-09 06:58:02,513 INFO L262 CegarLoopResult]: For program point L290-1(line 290) no Hoare annotation was computed. [2020-12-09 06:58:02,513 INFO L265 CegarLoopResult]: At program point L278(lines 249 279) the Hoare annotation is: true [2020-12-09 06:58:02,513 INFO L262 CegarLoopResult]: For program point L270-1(lines 250 279) no Hoare annotation was computed. [2020-12-09 06:58:02,514 INFO L262 CegarLoopResult]: For program point L270-2(lines 270 277) no Hoare annotation was computed. [2020-12-09 06:58:02,514 INFO L262 CegarLoopResult]: For program point Id_MCDC_95FINAL(lines 280 299) no Hoare annotation was computed. [2020-12-09 06:58:02,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:58:02 BoogieIcfgContainer [2020-12-09 06:58:02,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 06:58:02,528 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 06:58:02,528 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 06:58:02,528 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 06:58:02,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:57:58" (3/4) ... [2020-12-09 06:58:02,531 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 06:58:02,537 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_95 [2020-12-09 06:58:02,551 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 59 nodes and edges [2020-12-09 06:58:02,553 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2020-12-09 06:58:02,554 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-09 06:58:02,556 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-09 06:58:02,557 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 06:58:02,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 06:58:02,583 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1bv32 == Id_MCDC_103 && (!(4bv32 == \old(Id_MCDC_93)) || 4bv32 == Id_MCDC_93) [2020-12-09 06:58:02,645 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7ccad3e9-e584-406c-be61-59ed760d8253/bin/utaipan/witness.graphml [2020-12-09 06:58:02,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 06:58:02,647 INFO L168 Benchmark]: Toolchain (without parser) took 5355.38 ms. Allocated memory was 56.6 MB in the beginning and 104.9 MB in the end (delta: 48.2 MB). Free memory was 35.4 MB in the beginning and 35.4 MB in the end (delta: -65.6 kB). Peak memory consumption was 48.3 MB. Max. memory is 16.1 GB. [2020-12-09 06:58:02,647 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 56.6 MB. Free memory was 39.3 MB in the beginning and 39.2 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:58:02,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 417.13 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 35.0 MB in the beginning and 42.7 MB in the end (delta: -7.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 06:58:02,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.57 ms. Allocated memory is still 71.3 MB. Free memory was 42.7 MB in the beginning and 38.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 06:58:02,648 INFO L168 Benchmark]: Boogie Preprocessor took 77.95 ms. Allocated memory is still 71.3 MB. Free memory was 38.0 MB in the beginning and 51.2 MB in the end (delta: -13.2 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2020-12-09 06:58:02,648 INFO L168 Benchmark]: RCFGBuilder took 939.03 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 51.2 MB in the beginning and 42.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. [2020-12-09 06:58:02,648 INFO L168 Benchmark]: TraceAbstraction took 3732.74 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 41.8 MB in the beginning and 53.4 MB in the end (delta: -11.5 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2020-12-09 06:58:02,649 INFO L168 Benchmark]: Witness Printer took 117.96 ms. Allocated memory is still 104.9 MB. Free memory was 53.4 MB in the beginning and 35.4 MB in the end (delta: 17.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 06:58:02,650 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 56.6 MB. Free memory was 39.3 MB in the beginning and 39.2 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 417.13 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 35.0 MB in the beginning and 42.7 MB in the end (delta: -7.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.57 ms. Allocated memory is still 71.3 MB. Free memory was 42.7 MB in the beginning and 38.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.95 ms. Allocated memory is still 71.3 MB. Free memory was 38.0 MB in the beginning and 51.2 MB in the end (delta: -13.2 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 939.03 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 51.2 MB in the beginning and 42.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3732.74 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 41.8 MB in the beginning and 53.4 MB in the end (delta: -11.5 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. * Witness Printer took 117.96 ms. Allocated memory is still 104.9 MB. Free memory was 53.4 MB in the beginning and 35.4 MB in the end (delta: 17.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 463]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 331]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 358]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 427]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 459]: Loop Invariant Derived loop invariant: 1bv32 == Id_MCDC_103 && (!(4bv32 == \old(Id_MCDC_93)) || 4bv32 == Id_MCDC_93) - InvariantResult [Line: 376]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 406]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 176 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1254 SDtfs, 284 SDslu, 1052 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=3, 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, 4 MinimizatonAttempts, 148 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 49 PreInvPairs, 80 NumberOfFragments, 43 HoareAnnotationTreeSize, 49 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 25 FomulaSimplificationsInter, 11 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 6752 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1629 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 13/23 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...