./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 232b8770d72be0c69bb3b6e33b82b59b612dcbb47eb932e66c113d1f5f5b981f ............................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 232b8770d72be0c69bb3b6e33b82b59b612dcbb47eb932e66c113d1f5f5b981f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:36:05,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:36:05,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:36:05,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:36:05,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:36:05,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:36:05,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:36:05,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:36:05,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:36:05,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:36:05,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:36:05,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:36:05,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:36:05,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:36:05,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:36:05,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:36:05,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:36:05,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:36:05,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:36:05,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:36:05,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:36:05,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:36:05,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:36:05,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:36:05,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:36:05,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:36:05,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:36:05,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:36:05,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:36:05,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:36:05,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:36:05,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:36:05,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:36:05,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:36:05,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:36:05,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:36:05,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:36:05,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:36:05,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:36:05,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:36:05,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:36:05,308 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-20 05:36:05,353 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:36:05,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:36:05,354 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:36:05,354 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:36:05,354 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:36:05,355 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:36:05,355 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:36:05,355 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:36:05,355 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:36:05,355 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:36:05,356 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:36:05,356 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:36:05,356 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:36:05,356 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:36:05,356 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:36:05,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-20 05:36:05,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-20 05:36:05,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:36:05,358 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:36:05,358 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-20 05:36:05,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:36:05,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:36:05,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:36:05,359 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-20 05:36:05,359 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-20 05:36:05,359 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-20 05:36:05,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:36:05,359 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:36:05,360 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:36:05,360 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:36:05,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:36:05,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:36:05,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:36:05,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:36:05,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:36:05,361 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:36:05,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:36:05,361 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:36:05,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:36:05,362 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 232b8770d72be0c69bb3b6e33b82b59b612dcbb47eb932e66c113d1f5f5b981f [2021-10-20 05:36:05,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:36:05,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:36:05,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:36:05,676 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:36:05,677 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:36:05,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-2.i [2021-10-20 05:36:05,738 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/data/206b0c192/41374745daf242e8a88dfea98303baaf/FLAG70380008d [2021-10-20 05:36:06,276 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:36:06,279 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-2.i [2021-10-20 05:36:06,303 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/data/206b0c192/41374745daf242e8a88dfea98303baaf/FLAG70380008d [2021-10-20 05:36:06,552 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/data/206b0c192/41374745daf242e8a88dfea98303baaf [2021-10-20 05:36:06,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:36:06,556 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:36:06,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:36:06,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:36:06,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:36:06,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:36:06" (1/1) ... [2021-10-20 05:36:06,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@258f3086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:06, skipping insertion in model container [2021-10-20 05:36:06,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:36:06" (1/1) ... [2021-10-20 05:36:06,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:36:06,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:36:06,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:36:06,935 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) [2021-10-20 05:36:06,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1634eec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:06, skipping insertion in model container [2021-10-20 05:36:06,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:36:06,937 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-20 05:36:06,939 INFO L168 Benchmark]: Toolchain (without parser) took 381.38 ms. Allocated memory is still 102.8 MB. Free memory was 59.0 MB in the beginning and 77.0 MB in the end (delta: -18.0 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. [2021-10-20 05:36:06,940 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 102.8 MB. Free memory is still 77.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:36:06,941 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.17 ms. Allocated memory is still 102.8 MB. Free memory was 58.8 MB in the beginning and 77.0 MB in the end (delta: -18.2 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. [2021-10-20 05:36:06,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 102.8 MB. Free memory is still 77.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 378.17 ms. Allocated memory is still 102.8 MB. Free memory was 58.8 MB in the beginning and 77.0 MB in the end (delta: -18.2 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 556]: 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 0.2.1-dev-e943c26 [2021-10-20 05:36:09,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:36:09,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:36:09,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:36:09,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:36:09,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:36:09,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:36:09,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:36:09,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:36:09,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:36:09,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:36:09,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:36:09,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:36:09,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:36:09,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:36:09,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:36:09,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:36:09,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:36:09,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:36:09,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:36:09,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:36:09,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:36:09,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:36:09,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:36:09,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:36:09,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:36:09,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:36:09,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:36:09,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:36:09,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:36:09,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:36:09,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:36:09,363 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:36:09,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:36:09,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:36:09,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:36:09,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:36:09,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:36:09,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:36:09,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:36:09,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:36:09,384 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-20 05:36:09,428 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:36:09,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:36:09,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:36:09,430 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:36:09,431 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:36:09,431 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:36:09,431 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:36:09,431 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:36:09,432 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:36:09,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-20 05:36:09,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-20 05:36:09,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:36:09,435 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:36:09,435 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-20 05:36:09,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:36:09,436 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:36:09,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:36:09,436 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-20 05:36:09,436 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-20 05:36:09,437 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-20 05:36:09,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:36:09,437 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:36:09,437 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-20 05:36:09,438 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-20 05:36:09,438 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:36:09,438 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:36:09,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:36:09,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-20 05:36:09,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:36:09,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:36:09,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:36:09,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:36:09,440 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-20 05:36:09,440 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-20 05:36:09,441 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:36:09,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:36:09,441 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_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 232b8770d72be0c69bb3b6e33b82b59b612dcbb47eb932e66c113d1f5f5b981f [2021-10-20 05:36:09,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:36:09,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:36:09,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:36:09,833 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:36:09,833 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:36:09,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-2.i [2021-10-20 05:36:09,899 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/data/cee58595f/06c0e20820e14635b71fb682dc752f23/FLAGb1a17aec5 [2021-10-20 05:36:10,597 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:36:10,598 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-2.i [2021-10-20 05:36:10,616 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/data/cee58595f/06c0e20820e14635b71fb682dc752f23/FLAGb1a17aec5 [2021-10-20 05:36:10,838 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/data/cee58595f/06c0e20820e14635b71fb682dc752f23 [2021-10-20 05:36:10,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:36:10,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:36:10,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:36:10,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:36:10,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:36:10,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:36:10" (1/1) ... [2021-10-20 05:36:10,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63e82cb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:10, skipping insertion in model container [2021-10-20 05:36:10,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:36:10" (1/1) ... [2021-10-20 05:36:10,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:36:10,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:36:11,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:36:11,325 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-20 05:36:11,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:36:11,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:36:11,372 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:36:11,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:36:11,486 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:36:11,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:11 WrapperNode [2021-10-20 05:36:11,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:36:11,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:36:11,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:36:11,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:36:11,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:11" (1/1) ... [2021-10-20 05:36:11,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:11" (1/1) ... [2021-10-20 05:36:11,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:36:11,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:36:11,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:36:11,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:36:11,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:11" (1/1) ... [2021-10-20 05:36:11,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:11" (1/1) ... [2021-10-20 05:36:11,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:11" (1/1) ... [2021-10-20 05:36:11,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:11" (1/1) ... [2021-10-20 05:36:11,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:11" (1/1) ... [2021-10-20 05:36:11,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:11" (1/1) ... [2021-10-20 05:36:11,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:11" (1/1) ... [2021-10-20 05:36:11,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:36:11,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:36:11,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:36:11,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:36:11,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:11" (1/1) ... [2021-10-20 05:36:11,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:36:11,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:36:11,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:36:11,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:36:11,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-20 05:36:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-20 05:36:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-20 05:36:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:36:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-20 05:36:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-20 05:36:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-20 05:36:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-20 05:36:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-20 05:36:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:36:11,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:36:13,184 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:36:13,184 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-20 05:36:13,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:36:13 BoogieIcfgContainer [2021-10-20 05:36:13,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:36:13,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:36:13,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:36:13,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:36:13,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:36:10" (1/3) ... [2021-10-20 05:36:13,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9dea7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:36:13, skipping insertion in model container [2021-10-20 05:36:13,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:36:11" (2/3) ... [2021-10-20 05:36:13,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9dea7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:36:13, skipping insertion in model container [2021-10-20 05:36:13,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:36:13" (3/3) ... [2021-10-20 05:36:13,196 INFO L111 eAbstractionObserver]: Analyzing ICFG complex_data_creation_test01-2.i [2021-10-20 05:36:13,201 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:36:13,202 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 132 error locations. [2021-10-20 05:36:13,248 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:36:13,254 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-20 05:36:13,256 INFO L340 AbstractCegarLoop]: Starting to check reachability of 132 error locations. [2021-10-20 05:36:13,284 INFO L276 IsEmpty]: Start isEmpty. Operand has 265 states, 132 states have (on average 2.1818181818181817) internal successors, (288), 264 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:13,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-20 05:36:13,299 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:13,302 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-20 05:36:13,303 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-10-20 05:36:13,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:13,315 INFO L82 PathProgramCache]: Analyzing trace with hash 925637, now seen corresponding path program 1 times [2021-10-20 05:36:13,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:13,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718581622] [2021-10-20 05:36:13,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:13,331 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:13,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:13,334 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:13,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-20 05:36:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:13,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-20 05:36:13,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:13,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-20 05:36:13,594 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-20 05:36:13,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 24 [2021-10-20 05:36:13,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:13,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:13,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:13,702 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:13,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718581622] [2021-10-20 05:36:13,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718581622] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:13,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:13,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-20 05:36:13,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047577023] [2021-10-20 05:36:13,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-20 05:36:13,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:13,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-20 05:36:13,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-20 05:36:13,736 INFO L87 Difference]: Start difference. First operand has 265 states, 132 states have (on average 2.1818181818181817) internal successors, (288), 264 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:14,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:14,707 INFO L93 Difference]: Finished difference Result 283 states and 301 transitions. [2021-10-20 05:36:14,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:36:14,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-20 05:36:14,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:14,720 INFO L225 Difference]: With dead ends: 283 [2021-10-20 05:36:14,721 INFO L226 Difference]: Without dead ends: 281 [2021-10-20 05:36:14,722 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 86.4ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-20 05:36:14,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-10-20 05:36:14,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 255. [2021-10-20 05:36:14,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 131 states have (on average 2.0763358778625953) internal successors, (272), 254 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:14,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 272 transitions. [2021-10-20 05:36:14,774 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 272 transitions. Word has length 4 [2021-10-20 05:36:14,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:14,774 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 272 transitions. [2021-10-20 05:36:14,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:14,775 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 272 transitions. [2021-10-20 05:36:14,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-20 05:36:14,775 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:14,775 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-20 05:36:14,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:14,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:14,983 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-10-20 05:36:14,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:14,984 INFO L82 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2021-10-20 05:36:14,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:14,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050743607] [2021-10-20 05:36:14,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:14,985 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:14,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:14,988 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:14,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-20 05:36:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:15,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-20 05:36:15,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:15,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-20 05:36:15,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-20 05:36:15,173 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-20 05:36:15,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-10-20 05:36:15,195 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-20 05:36:15,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-10-20 05:36:15,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:15,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:15,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:15,531 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:15,531 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050743607] [2021-10-20 05:36:15,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050743607] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:15,532 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:15,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-20 05:36:15,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758165787] [2021-10-20 05:36:15,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-20 05:36:15,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:15,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-20 05:36:15,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-20 05:36:15,538 INFO L87 Difference]: Start difference. First operand 255 states and 272 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:27,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:27,007 INFO L93 Difference]: Finished difference Result 392 states and 416 transitions. [2021-10-20 05:36:27,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-20 05:36:27,008 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-20 05:36:27,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:27,012 INFO L225 Difference]: With dead ends: 392 [2021-10-20 05:36:27,012 INFO L226 Difference]: Without dead ends: 392 [2021-10-20 05:36:27,013 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 423.1ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-20 05:36:27,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2021-10-20 05:36:27,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 266. [2021-10-20 05:36:27,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 146 states have (on average 1.9863013698630136) internal successors, (290), 265 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:27,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 290 transitions. [2021-10-20 05:36:27,050 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 290 transitions. Word has length 4 [2021-10-20 05:36:27,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:27,051 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 290 transitions. [2021-10-20 05:36:27,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:27,051 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 290 transitions. [2021-10-20 05:36:27,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-20 05:36:27,052 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:27,052 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-20 05:36:27,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-20 05:36:27,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:27,255 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-10-20 05:36:27,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:27,256 INFO L82 PathProgramCache]: Analyzing trace with hash 28694727, now seen corresponding path program 1 times [2021-10-20 05:36:27,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:27,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481260933] [2021-10-20 05:36:27,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:27,257 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:27,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:27,258 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:27,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-20 05:36:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:27,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:36:27,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:27,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-20 05:36:27,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:27,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:27,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:27,376 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:27,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481260933] [2021-10-20 05:36:27,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [481260933] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:27,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:27,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-20 05:36:27,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590904145] [2021-10-20 05:36:27,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:36:27,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:27,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:36:27,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:36:27,379 INFO L87 Difference]: Start difference. First operand 266 states and 290 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:28,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:28,068 INFO L93 Difference]: Finished difference Result 279 states and 299 transitions. [2021-10-20 05:36:28,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:36:28,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-20 05:36:28,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:28,071 INFO L225 Difference]: With dead ends: 279 [2021-10-20 05:36:28,071 INFO L226 Difference]: Without dead ends: 279 [2021-10-20 05:36:28,071 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:36:28,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-10-20 05:36:28,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 262. [2021-10-20 05:36:28,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 146 states have (on average 1.9452054794520548) internal successors, (284), 261 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:28,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 284 transitions. [2021-10-20 05:36:28,084 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 284 transitions. Word has length 5 [2021-10-20 05:36:28,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:28,085 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 284 transitions. [2021-10-20 05:36:28,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:28,085 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 284 transitions. [2021-10-20 05:36:28,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-20 05:36:28,086 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:28,086 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-20 05:36:28,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:28,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:28,301 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-10-20 05:36:28,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:28,302 INFO L82 PathProgramCache]: Analyzing trace with hash 28694728, now seen corresponding path program 1 times [2021-10-20 05:36:28,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:28,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116326521] [2021-10-20 05:36:28,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:28,303 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:28,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:28,304 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:28,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-20 05:36:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:28,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-20 05:36:28,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:28,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-20 05:36:28,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:28,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:28,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:28,534 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:28,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116326521] [2021-10-20 05:36:28,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2116326521] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:28,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:28,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-20 05:36:28,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687176128] [2021-10-20 05:36:28,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:36:28,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:28,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:36:28,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:36:28,536 INFO L87 Difference]: Start difference. First operand 262 states and 284 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:30,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:30,290 INFO L93 Difference]: Finished difference Result 407 states and 437 transitions. [2021-10-20 05:36:30,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:36:30,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-20 05:36:30,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:30,293 INFO L225 Difference]: With dead ends: 407 [2021-10-20 05:36:30,294 INFO L226 Difference]: Without dead ends: 407 [2021-10-20 05:36:30,294 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 40.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:36:30,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2021-10-20 05:36:30,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 264. [2021-10-20 05:36:30,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 150 states have (on average 1.9066666666666667) internal successors, (286), 263 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:30,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 286 transitions. [2021-10-20 05:36:30,305 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 286 transitions. Word has length 5 [2021-10-20 05:36:30,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:30,305 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 286 transitions. [2021-10-20 05:36:30,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:30,306 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 286 transitions. [2021-10-20 05:36:30,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-20 05:36:30,306 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:30,307 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:36:30,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:30,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:30,518 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-10-20 05:36:30,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:30,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1328641074, now seen corresponding path program 1 times [2021-10-20 05:36:30,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:30,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434100160] [2021-10-20 05:36:30,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:30,519 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:30,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:30,521 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:30,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-20 05:36:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:30,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-20 05:36:30,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:30,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:30,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:30,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:30,669 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:30,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434100160] [2021-10-20 05:36:30,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1434100160] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:30,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:30,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-20 05:36:30,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192242212] [2021-10-20 05:36:30,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:36:30,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:30,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:36:30,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:36:30,672 INFO L87 Difference]: Start difference. First operand 264 states and 286 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:30,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:30,701 INFO L93 Difference]: Finished difference Result 255 states and 275 transitions. [2021-10-20 05:36:30,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:36:30,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-20 05:36:30,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:30,704 INFO L225 Difference]: With dead ends: 255 [2021-10-20 05:36:30,704 INFO L226 Difference]: Without dead ends: 255 [2021-10-20 05:36:30,704 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:36:30,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-10-20 05:36:30,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2021-10-20 05:36:30,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 145 states have (on average 1.896551724137931) internal successors, (275), 254 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:30,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 275 transitions. [2021-10-20 05:36:30,712 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 275 transitions. Word has length 10 [2021-10-20 05:36:30,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:30,712 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 275 transitions. [2021-10-20 05:36:30,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:30,713 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 275 transitions. [2021-10-20 05:36:30,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-20 05:36:30,713 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:30,714 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:36:30,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:30,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:30,926 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr50REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-10-20 05:36:30,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:30,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1328508074, now seen corresponding path program 1 times [2021-10-20 05:36:30,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:30,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363126663] [2021-10-20 05:36:30,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:30,927 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:30,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:30,928 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:30,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-20 05:36:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:31,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-20 05:36:31,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:31,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-20 05:36:31,137 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-20 05:36:31,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-10-20 05:36:31,261 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-10-20 05:36:31,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 44 [2021-10-20 05:36:31,303 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-10-20 05:36:31,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 31 [2021-10-20 05:36:31,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-10-20 05:36:31,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2021-10-20 05:36:31,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:31,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:41,632 WARN L207 SmtUtils]: Spent 8.02 s on a formula simplification that was a NOOP. DAG size: 26 [2021-10-20 05:36:43,762 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_append_~node~0.base_20 (_ BitVec 32))) (or (and (forall ((ULTIMATE.start_append_~node~0.offset (_ BitVec 32)) (|ULTIMATE.start_append_#t~mem27.base| (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_append_~node~0.base_20 (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_append_~node~0.base_20) (bvadd (_ bv4 32) ULTIMATE.start_append_~node~0.offset) |ULTIMATE.start_append_#t~mem27.base|)) |c_ULTIMATE.start_main_~#list~0.base|) |c_ULTIMATE.start_main_~#list~0.offset|) (_ bv0 32))) (forall ((ULTIMATE.start_append_~node~0.offset (_ BitVec 32)) (|ULTIMATE.start_append_#t~mem27.offset| (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_append_~node~0.base_20 (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_append_~node~0.base_20) (bvadd (_ bv4 32) ULTIMATE.start_append_~node~0.offset) |ULTIMATE.start_append_#t~mem27.offset|)) |c_ULTIMATE.start_main_~#list~0.base|) |c_ULTIMATE.start_main_~#list~0.offset|) (_ bv0 32)))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_append_~node~0.base_20))))) is different from false [2021-10-20 05:36:43,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:43,799 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:43,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363126663] [2021-10-20 05:36:43,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363126663] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:43,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:43,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-10-20 05:36:43,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291378532] [2021-10-20 05:36:43,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-20 05:36:43,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:43,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-20 05:36:43,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=28, Unknown=2, NotChecked=10, Total=56 [2021-10-20 05:36:43,802 INFO L87 Difference]: Start difference. First operand 255 states and 275 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:44,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:44,985 INFO L93 Difference]: Finished difference Result 266 states and 286 transitions. [2021-10-20 05:36:44,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-20 05:36:44,986 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-20 05:36:44,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:44,987 INFO L225 Difference]: With dead ends: 266 [2021-10-20 05:36:44,987 INFO L226 Difference]: Without dead ends: 266 [2021-10-20 05:36:44,988 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 12316.5ms TimeCoverageRelationStatistics Valid=28, Invalid=46, Unknown=2, NotChecked=14, Total=90 [2021-10-20 05:36:44,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-20 05:36:44,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 261. [2021-10-20 05:36:44,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 151 states have (on average 1.8609271523178808) internal successors, (281), 260 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:44,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 281 transitions. [2021-10-20 05:36:44,995 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 281 transitions. Word has length 10 [2021-10-20 05:36:44,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:44,996 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 281 transitions. [2021-10-20 05:36:44,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:44,996 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 281 transitions. [2021-10-20 05:36:44,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-20 05:36:44,997 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:44,997 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:36:45,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-20 05:36:45,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:45,206 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-10-20 05:36:45,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:45,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1761805906, now seen corresponding path program 1 times [2021-10-20 05:36:45,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:45,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80099871] [2021-10-20 05:36:45,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:45,209 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:45,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:45,210 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:45,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-20 05:36:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:45,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:36:45,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:45,372 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-20 05:36:45,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 14 [2021-10-20 05:36:45,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:45,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:45,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:45,437 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:45,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80099871] [2021-10-20 05:36:45,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80099871] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:45,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:45,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-20 05:36:45,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369175853] [2021-10-20 05:36:45,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:36:45,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:45,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:36:45,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:36:45,439 INFO L87 Difference]: Start difference. First operand 261 states and 281 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:46,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:46,342 INFO L93 Difference]: Finished difference Result 286 states and 310 transitions. [2021-10-20 05:36:46,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:36:46,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-20 05:36:46,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:46,348 INFO L225 Difference]: With dead ends: 286 [2021-10-20 05:36:46,348 INFO L226 Difference]: Without dead ends: 286 [2021-10-20 05:36:46,349 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:36:46,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-10-20 05:36:46,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 235. [2021-10-20 05:36:46,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 151 states have (on average 1.6887417218543046) internal successors, (255), 234 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:46,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 255 transitions. [2021-10-20 05:36:46,356 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 255 transitions. Word has length 11 [2021-10-20 05:36:46,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:46,356 INFO L470 AbstractCegarLoop]: Abstraction has 235 states and 255 transitions. [2021-10-20 05:36:46,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:46,357 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 255 transitions. [2021-10-20 05:36:46,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-20 05:36:46,357 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:46,357 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:36:46,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:46,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:46,558 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-10-20 05:36:46,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:46,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1761805907, now seen corresponding path program 1 times [2021-10-20 05:36:46,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:46,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045689633] [2021-10-20 05:36:46,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:46,559 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:46,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:46,561 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:46,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-20 05:36:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:46,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 05:36:46,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:46,787 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-20 05:36:46,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2021-10-20 05:36:46,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2021-10-20 05:36:46,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:46,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:46,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:46,904 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:46,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045689633] [2021-10-20 05:36:46,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1045689633] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:46,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:46,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-20 05:36:46,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36087533] [2021-10-20 05:36:46,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:36:46,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:46,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:36:46,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:36:46,907 INFO L87 Difference]: Start difference. First operand 235 states and 255 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:48,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:48,297 INFO L93 Difference]: Finished difference Result 369 states and 398 transitions. [2021-10-20 05:36:48,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:36:48,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-20 05:36:48,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:48,300 INFO L225 Difference]: With dead ends: 369 [2021-10-20 05:36:48,301 INFO L226 Difference]: Without dead ends: 369 [2021-10-20 05:36:48,301 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:36:48,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2021-10-20 05:36:48,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 217. [2021-10-20 05:36:48,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 151 states have (on average 1.5695364238410596) internal successors, (237), 216 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:48,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 237 transitions. [2021-10-20 05:36:48,308 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 237 transitions. Word has length 11 [2021-10-20 05:36:48,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:48,308 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 237 transitions. [2021-10-20 05:36:48,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:48,308 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 237 transitions. [2021-10-20 05:36:48,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-20 05:36:48,309 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:48,309 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:36:48,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:48,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:48,522 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-10-20 05:36:48,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:48,522 INFO L82 PathProgramCache]: Analyzing trace with hash -2003218563, now seen corresponding path program 1 times [2021-10-20 05:36:48,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:48,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [923819964] [2021-10-20 05:36:48,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:48,523 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:48,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:48,523 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:48,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-20 05:36:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:48,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 05:36:48,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:48,667 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-20 05:36:48,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 14 [2021-10-20 05:36:48,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2021-10-20 05:36:48,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-10-20 05:36:48,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:48,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:48,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:48,912 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:48,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [923819964] [2021-10-20 05:36:48,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [923819964] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:48,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:48,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-20 05:36:48,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489068956] [2021-10-20 05:36:48,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-20 05:36:48,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:48,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-20 05:36:48,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-20 05:36:48,914 INFO L87 Difference]: Start difference. First operand 217 states and 237 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:50,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:50,555 INFO L93 Difference]: Finished difference Result 273 states and 303 transitions. [2021-10-20 05:36:50,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-20 05:36:50,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-20 05:36:50,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:50,557 INFO L225 Difference]: With dead ends: 273 [2021-10-20 05:36:50,558 INFO L226 Difference]: Without dead ends: 273 [2021-10-20 05:36:50,558 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 132.7ms TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-20 05:36:50,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-10-20 05:36:50,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 223. [2021-10-20 05:36:50,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 157 states have (on average 1.5732484076433122) internal successors, (247), 222 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:50,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 247 transitions. [2021-10-20 05:36:50,564 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 247 transitions. Word has length 15 [2021-10-20 05:36:50,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:50,564 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 247 transitions. [2021-10-20 05:36:50,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:50,565 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 247 transitions. [2021-10-20 05:36:50,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-20 05:36:50,565 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:50,565 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:36:50,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:50,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:50,766 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-10-20 05:36:50,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:50,766 INFO L82 PathProgramCache]: Analyzing trace with hash -2003218562, now seen corresponding path program 1 times [2021-10-20 05:36:50,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:50,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037327723] [2021-10-20 05:36:50,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:50,767 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:50,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:50,768 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:50,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-20 05:36:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:50,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-20 05:36:50,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:50,974 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-20 05:36:50,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-20 05:36:51,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-10-20 05:36:51,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-10-20 05:36:51,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 36 [2021-10-20 05:36:51,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2021-10-20 05:36:51,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:51,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:51,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:51,893 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:51,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037327723] [2021-10-20 05:36:51,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037327723] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:51,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:51,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-20 05:36:51,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348524858] [2021-10-20 05:36:51,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-20 05:36:51,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:51,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-20 05:36:51,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-20 05:36:51,894 INFO L87 Difference]: Start difference. First operand 223 states and 247 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:56,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:56,446 INFO L93 Difference]: Finished difference Result 225 states and 245 transitions. [2021-10-20 05:36:56,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-20 05:36:56,448 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-20 05:36:56,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:56,449 INFO L225 Difference]: With dead ends: 225 [2021-10-20 05:36:56,449 INFO L226 Difference]: Without dead ends: 225 [2021-10-20 05:36:56,449 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 614.6ms TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-10-20 05:36:56,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-10-20 05:36:56,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 223. [2021-10-20 05:36:56,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 157 states have (on average 1.5477707006369428) internal successors, (243), 222 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:56,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 243 transitions. [2021-10-20 05:36:56,456 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 243 transitions. Word has length 15 [2021-10-20 05:36:56,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:56,456 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 243 transitions. [2021-10-20 05:36:56,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:36:56,457 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 243 transitions. [2021-10-20 05:36:56,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-20 05:36:56,458 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:56,458 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:36:56,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:56,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:56,681 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-10-20 05:36:56,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:56,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1799893576, now seen corresponding path program 1 times [2021-10-20 05:36:56,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:56,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37277230] [2021-10-20 05:36:56,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:56,682 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:56,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:56,683 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:56,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-20 05:36:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:56,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-20 05:36:56,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:56,974 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-20 05:36:56,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21 [2021-10-20 05:36:57,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-10-20 05:36:57,388 INFO L354 Elim1Store]: treesize reduction 673, result has 1.3 percent of original size [2021-10-20 05:36:57,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 138 treesize of output 49 [2021-10-20 05:36:57,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 27 [2021-10-20 05:36:57,536 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-20 05:36:57,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:57,626 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:36:57,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-10-20 05:37:39,184 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:37:39,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37277230] [2021-10-20 05:37:39,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-20 05:37:39,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1208547925] [2021-10-20 05:37:39,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:37:39,186 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 05:37:39,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 05:37:39,187 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 05:37:39,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-20 05:37:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:37:39,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-20 05:37:39,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:37:39,578 INFO L354 Elim1Store]: treesize reduction 42, result has 33.3 percent of original size [2021-10-20 05:37:39,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 40 [2021-10-20 05:37:39,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-10-20 05:37:39,904 INFO L354 Elim1Store]: treesize reduction 673, result has 1.3 percent of original size [2021-10-20 05:37:39,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 140 treesize of output 51 [2021-10-20 05:37:39,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 27 [2021-10-20 05:37:40,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-20 05:37:40,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:37:40,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:37:40,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-10-20 05:38:19,701 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-20 05:38:19,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331087985] [2021-10-20 05:38:19,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:38:19,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:38:19,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:38:19,703 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:38:19,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-20 05:38:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:38:19,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-20 05:38:19,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:38:19,915 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-20 05:38:19,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2021-10-20 05:38:19,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-10-20 05:38:20,154 INFO L354 Elim1Store]: treesize reduction 673, result has 1.3 percent of original size [2021-10-20 05:38:20,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 139 treesize of output 50 [2021-10-20 05:38:20,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 27 [2021-10-20 05:38:20,253 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-20 05:38:20,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:38:20,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:38:20,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-10-20 05:38:53,904 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-20 05:38:53,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:38:53,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-20 05:38:53,905 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-20 05:38:53,905 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-20 05:38:53,912 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-10-20 05:38:53,914 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-20 05:38:53,914 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-20 05:38:53,914 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-20 05:38:53,914 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-20 05:38:53,914 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-20 05:38:53,914 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-20 05:38:53,914 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-20 05:38:53,915 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-20 05:38:53,915 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-20 05:38:53,915 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-20 05:38:53,915 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-20 05:38:53,915 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-20 05:38:53,915 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-20 05:38:53,915 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-20 05:38:53,915 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-10-20 05:38:53,915 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION [2021-10-20 05:38:53,915 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-10-20 05:38:53,916 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-10-20 05:38:53,916 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-10-20 05:38:53,916 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-10-20 05:38:53,916 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-10-20 05:38:53,916 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION [2021-10-20 05:38:53,916 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION [2021-10-20 05:38:53,916 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION [2021-10-20 05:38:53,916 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION [2021-10-20 05:38:53,917 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATION [2021-10-20 05:38:53,917 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATION [2021-10-20 05:38:53,917 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATION [2021-10-20 05:38:53,917 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATION [2021-10-20 05:38:53,917 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION [2021-10-20 05:38:53,918 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATION [2021-10-20 05:38:53,918 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATION [2021-10-20 05:38:53,918 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATION [2021-10-20 05:38:53,918 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATION [2021-10-20 05:38:53,918 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATION [2021-10-20 05:38:53,918 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATION [2021-10-20 05:38:53,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATION [2021-10-20 05:38:53,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATION [2021-10-20 05:38:53,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATION [2021-10-20 05:38:53,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATION [2021-10-20 05:38:53,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41REQUIRES_VIOLATION [2021-10-20 05:38:53,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATION [2021-10-20 05:38:53,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43REQUIRES_VIOLATION [2021-10-20 05:38:53,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44REQUIRES_VIOLATION [2021-10-20 05:38:53,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45REQUIRES_VIOLATION [2021-10-20 05:38:53,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46REQUIRES_VIOLATION [2021-10-20 05:38:53,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47REQUIRES_VIOLATION [2021-10-20 05:38:53,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48REQUIRES_VIOLATION [2021-10-20 05:38:53,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49REQUIRES_VIOLATION [2021-10-20 05:38:53,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50REQUIRES_VIOLATION [2021-10-20 05:38:53,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51REQUIRES_VIOLATION [2021-10-20 05:38:53,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52REQUIRES_VIOLATION [2021-10-20 05:38:53,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53REQUIRES_VIOLATION [2021-10-20 05:38:53,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54REQUIRES_VIOLATION [2021-10-20 05:38:53,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55REQUIRES_VIOLATION [2021-10-20 05:38:53,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56REQUIRES_VIOLATION [2021-10-20 05:38:53,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57REQUIRES_VIOLATION [2021-10-20 05:38:53,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58REQUIRES_VIOLATION [2021-10-20 05:38:53,921 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59REQUIRES_VIOLATION [2021-10-20 05:38:53,921 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60REQUIRES_VIOLATION [2021-10-20 05:38:53,921 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61REQUIRES_VIOLATION [2021-10-20 05:38:53,921 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62REQUIRES_VIOLATION [2021-10-20 05:38:53,921 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63REQUIRES_VIOLATION [2021-10-20 05:38:53,921 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64REQUIRES_VIOLATION [2021-10-20 05:38:53,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65REQUIRES_VIOLATION [2021-10-20 05:38:53,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66REQUIRES_VIOLATION [2021-10-20 05:38:53,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67REQUIRES_VIOLATION [2021-10-20 05:38:53,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68REQUIRES_VIOLATION [2021-10-20 05:38:53,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69REQUIRES_VIOLATION [2021-10-20 05:38:53,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70REQUIRES_VIOLATION [2021-10-20 05:38:53,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71REQUIRES_VIOLATION [2021-10-20 05:38:53,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72REQUIRES_VIOLATION [2021-10-20 05:38:53,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73REQUIRES_VIOLATION [2021-10-20 05:38:53,923 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74REQUIRES_VIOLATION [2021-10-20 05:38:53,923 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75REQUIRES_VIOLATION [2021-10-20 05:38:53,923 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr76REQUIRES_VIOLATION [2021-10-20 05:38:53,923 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr77REQUIRES_VIOLATION [2021-10-20 05:38:53,923 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr78REQUIRES_VIOLATION [2021-10-20 05:38:53,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr79REQUIRES_VIOLATION [2021-10-20 05:38:53,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr80REQUIRES_VIOLATION [2021-10-20 05:38:53,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr81REQUIRES_VIOLATION [2021-10-20 05:38:53,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr82REQUIRES_VIOLATION [2021-10-20 05:38:53,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr83REQUIRES_VIOLATION [2021-10-20 05:38:53,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr84REQUIRES_VIOLATION [2021-10-20 05:38:53,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr85REQUIRES_VIOLATION [2021-10-20 05:38:53,925 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr86REQUIRES_VIOLATION [2021-10-20 05:38:53,925 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr87REQUIRES_VIOLATION [2021-10-20 05:38:53,925 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr88REQUIRES_VIOLATION [2021-10-20 05:38:53,925 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr89REQUIRES_VIOLATION [2021-10-20 05:38:53,925 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr90REQUIRES_VIOLATION [2021-10-20 05:38:53,925 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr91REQUIRES_VIOLATION [2021-10-20 05:38:53,926 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr92REQUIRES_VIOLATION [2021-10-20 05:38:53,926 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr93REQUIRES_VIOLATION [2021-10-20 05:38:53,926 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr94REQUIRES_VIOLATION [2021-10-20 05:38:53,926 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr95REQUIRES_VIOLATION [2021-10-20 05:38:53,926 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr96REQUIRES_VIOLATION [2021-10-20 05:38:53,927 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr97REQUIRES_VIOLATION [2021-10-20 05:38:53,927 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr98REQUIRES_VIOLATION [2021-10-20 05:38:53,927 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr99REQUIRES_VIOLATION [2021-10-20 05:38:53,927 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr100REQUIRES_VIOLATION [2021-10-20 05:38:53,927 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr101REQUIRES_VIOLATION [2021-10-20 05:38:53,928 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr102REQUIRES_VIOLATION [2021-10-20 05:38:53,928 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr103REQUIRES_VIOLATION [2021-10-20 05:38:53,928 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr104REQUIRES_VIOLATION [2021-10-20 05:38:53,928 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr105REQUIRES_VIOLATION [2021-10-20 05:38:53,928 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr106REQUIRES_VIOLATION [2021-10-20 05:38:53,928 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr107REQUIRES_VIOLATION [2021-10-20 05:38:53,929 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr108REQUIRES_VIOLATION [2021-10-20 05:38:53,929 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr109REQUIRES_VIOLATION [2021-10-20 05:38:53,929 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr110REQUIRES_VIOLATION [2021-10-20 05:38:53,929 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr111REQUIRES_VIOLATION [2021-10-20 05:38:53,929 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr112REQUIRES_VIOLATION [2021-10-20 05:38:53,930 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr113REQUIRES_VIOLATION [2021-10-20 05:38:53,930 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr114REQUIRES_VIOLATION [2021-10-20 05:38:53,930 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr115REQUIRES_VIOLATION [2021-10-20 05:38:53,930 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr116REQUIRES_VIOLATION [2021-10-20 05:38:53,930 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr117REQUIRES_VIOLATION [2021-10-20 05:38:53,931 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr118ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 05:38:53,931 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr119ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 05:38:53,931 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr120ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 05:38:53,931 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr121ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 05:38:53,932 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr122ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 05:38:53,932 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr123ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 05:38:53,932 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr124REQUIRES_VIOLATION [2021-10-20 05:38:53,932 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr125REQUIRES_VIOLATION [2021-10-20 05:38:53,932 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr126ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 05:38:53,933 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr127ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 05:38:53,933 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr128ASSERT_VIOLATIONMEMORY_FREE [2021-10-20 05:38:53,933 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr129REQUIRES_VIOLATION [2021-10-20 05:38:53,933 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr130REQUIRES_VIOLATION [2021-10-20 05:38:53,933 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr131ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 05:38:53,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-20 05:38:54,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-20 05:38:54,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-20 05:38:54,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:38:54,543 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:38:54,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:38:54 BoogieIcfgContainer [2021-10-20 05:38:54,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:38:54,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:38:54,558 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:38:54,558 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:38:54,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:36:13" (3/4) ... [2021-10-20 05:38:54,563 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-20 05:38:54,563 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:38:54,564 INFO L168 Benchmark]: Toolchain (without parser) took 163722.12 ms. Allocated memory was 62.9 MB in the beginning and 448.8 MB in the end (delta: 385.9 MB). Free memory was 42.9 MB in the beginning and 183.8 MB in the end (delta: -140.9 MB). Peak memory consumption was 245.6 MB. Max. memory is 16.1 GB. [2021-10-20 05:38:54,565 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 62.9 MB. Free memory is still 44.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:38:54,565 INFO L168 Benchmark]: CACSL2BoogieTranslator took 644.77 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 33.9 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:38:54,566 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.76 ms. Allocated memory is still 62.9 MB. Free memory was 33.9 MB in the beginning and 31.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:38:54,566 INFO L168 Benchmark]: Boogie Preprocessor took 93.66 ms. Allocated memory is still 62.9 MB. Free memory was 31.2 MB in the beginning and 28.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-20 05:38:54,567 INFO L168 Benchmark]: RCFGBuilder took 1500.28 ms. Allocated memory was 62.9 MB in the beginning and 86.0 MB in the end (delta: 23.1 MB). Free memory was 28.6 MB in the beginning and 59.7 MB in the end (delta: -31.2 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. [2021-10-20 05:38:54,567 INFO L168 Benchmark]: TraceAbstraction took 161368.48 ms. Allocated memory was 86.0 MB in the beginning and 448.8 MB in the end (delta: 362.8 MB). Free memory was 59.2 MB in the beginning and 183.8 MB in the end (delta: -124.6 MB). Peak memory consumption was 269.9 MB. Max. memory is 16.1 GB. [2021-10-20 05:38:54,568 INFO L168 Benchmark]: Witness Printer took 5.40 ms. Allocated memory is still 448.8 MB. Free memory is still 183.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:38:54,570 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 62.9 MB. Free memory is still 44.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 644.77 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 33.9 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 102.76 ms. Allocated memory is still 62.9 MB. Free memory was 33.9 MB in the beginning and 31.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 93.66 ms. Allocated memory is still 62.9 MB. Free memory was 31.2 MB in the beginning and 28.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1500.28 ms. Allocated memory was 62.9 MB in the beginning and 86.0 MB in the end (delta: 23.1 MB). Free memory was 28.6 MB in the beginning and 59.7 MB in the end (delta: -31.2 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 161368.48 ms. Allocated memory was 86.0 MB in the beginning and 448.8 MB in the end (delta: 362.8 MB). Free memory was 59.2 MB in the beginning and 183.8 MB in the end (delta: -124.6 MB). Peak memory consumption was 269.9 MB. Max. memory is 16.1 GB. * Witness Printer took 5.40 ms. Allocated memory is still 448.8 MB. Free memory is still 183.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L597] struct node_t *list = ((void *)0); [L598] int dataNotFinished = 0; [L587] struct node_t *node = malloc(sizeof *node); [L588] EXPR \read(**pointerToList) [L588] node->next = *pointerToList [L589] EXPR \read(**pointerToList) [L589] COND TRUE *pointerToList == ((void *)0) [L552] prevData != ((void *)0) && prevData->hasNextPartReference [L552] COND FALSE !(prevData != ((void *)0) && prevData->hasNextPartReference) [L555] Data data = malloc(sizeof *data); [L556] data->array = (int*) malloc(20 * sizeof(data->array)) [L557] int counter = 0; [L558] counter = 0 [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 589]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 589]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 556]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 556]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 561]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 561]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 569]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 569]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 571]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 571]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 572]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 572]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 574]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 574]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 575]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 575]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 577]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 577]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 590]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 590]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 592]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 592]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 592]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 592]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 556]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 556]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 561]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 561]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 569]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 569]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 571]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 571]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 572]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 572]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 574]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 574]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 575]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 575]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 577]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 577]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 592]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 592]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 603]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 603]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 604]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 604]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 604]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 604]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 605]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 605]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 605]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 605]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 583]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 583]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 583]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 583]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 583]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 606]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 606]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 606]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 606]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 606]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 596]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 265 locations, 132 error locations. Started 1 CEGAR loops. OverallTime: 161294.1ms, OverallIterations: 11, TraceHistogramMax: 2, EmptinessCheckTime: 27.0ms, AutomataDifference: 24665.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 21.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1679 SDtfs, 2801 SDslu, 2524 SDs, 0 SdLazy, 2557 SolverSat, 174 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 21846.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 125 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 13680.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=266occurred in iteration=2, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 137.9ms AutomataMinimizationTime, 10 MinimizatonAttempts, 572 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 109.0ms SsaConstructionTime, 270.1ms SatisfiabilityAnalysisTime, 15374.3ms InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 160 ConstructedInterpolants, 7 QuantifiedInterpolants, 1112 SizeOfPredicates, 47 NumberOfNonLiveVariables, 643 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-20 05:38:54,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a687b3-c282-491c-98ec-7258e78822f6/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...