./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label37.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label37.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6945cc41a1307d768849218ecc1e0a83fc49d7ce ....................................................................................................................................................................................................................................................................................................................................................... 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_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label37.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6945cc41a1307d768849218ecc1e0a83fc49d7ce .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 06:45:16,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:45:16,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:45:16,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:45:16,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:45:16,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:45:16,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:45:16,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:45:16,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:45:16,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:45:16,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:45:16,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:45:16,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:45:16,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:45:16,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:45:17,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:45:17,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:45:17,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:45:17,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:45:17,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:45:17,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:45:17,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:45:17,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:45:17,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:45:17,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:45:17,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:45:17,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:45:17,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:45:17,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:45:17,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:45:17,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:45:17,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:45:17,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:45:17,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:45:17,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:45:17,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:45:17,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:45:17,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:45:17,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:45:17,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:45:17,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:45:17,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 06:45:17,068 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:45:17,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:45:17,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:45:17,069 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:45:17,070 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:45:17,070 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:45:17,070 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 06:45:17,070 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:45:17,071 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:45:17,071 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 06:45:17,071 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 06:45:17,072 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:45:17,072 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 06:45:17,072 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 06:45:17,072 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 06:45:17,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:45:17,074 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:45:17,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 06:45:17,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:45:17,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:45:17,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:45:17,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:45:17,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:45:17,075 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:45:17,076 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:45:17,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:45:17,076 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:45:17,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:45:17,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:45:17,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:45:17,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:45:17,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:45:17,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:45:17,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:45:17,079 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 06:45:17,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 06:45:17,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:45:17,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:45:17,080 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:45:17,080 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_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6945cc41a1307d768849218ecc1e0a83fc49d7ce [2021-10-13 06:45:17,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:45:17,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:45:17,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:45:17,449 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:45:17,450 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:45:17,451 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem11_label37.c [2021-10-13 06:45:17,536 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/data/aefe09b97/7a9ff59e65cb4955bd9a221d9f14e19e/FLAG66d91ac38 [2021-10-13 06:45:18,160 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:45:18,170 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/sv-benchmarks/c/eca-rers2012/Problem11_label37.c [2021-10-13 06:45:18,201 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/data/aefe09b97/7a9ff59e65cb4955bd9a221d9f14e19e/FLAG66d91ac38 [2021-10-13 06:45:18,381 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/data/aefe09b97/7a9ff59e65cb4955bd9a221d9f14e19e [2021-10-13 06:45:18,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:45:18,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:45:18,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:45:18,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:45:18,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:45:18,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:45:18" (1/1) ... [2021-10-13 06:45:18,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38c34ba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:18, skipping insertion in model container [2021-10-13 06:45:18,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:45:18" (1/1) ... [2021-10-13 06:45:18,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:45:18,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:45:18,902 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/sv-benchmarks/c/eca-rers2012/Problem11_label37.c[7136,7149] [2021-10-13 06:45:19,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:45:19,306 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:45:19,335 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/sv-benchmarks/c/eca-rers2012/Problem11_label37.c[7136,7149] [2021-10-13 06:45:19,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:45:19,474 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:45:19,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:19 WrapperNode [2021-10-13 06:45:19,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:45:19,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:45:19,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:45:19,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:45:19,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:19" (1/1) ... [2021-10-13 06:45:19,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:19" (1/1) ... [2021-10-13 06:45:19,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:45:19,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:45:19,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:45:19,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:45:19,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:19" (1/1) ... [2021-10-13 06:45:19,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:19" (1/1) ... [2021-10-13 06:45:19,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:19" (1/1) ... [2021-10-13 06:45:19,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:19" (1/1) ... [2021-10-13 06:45:19,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:19" (1/1) ... [2021-10-13 06:45:19,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:19" (1/1) ... [2021-10-13 06:45:19,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:19" (1/1) ... [2021-10-13 06:45:19,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:45:19,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:45:19,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:45:19,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:45:19,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:19" (1/1) ... [2021-10-13 06:45:19,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:45:19,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:45:19,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:45:19,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:45:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 06:45:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:45:19,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:45:19,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:45:41,155 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:45:41,156 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 06:45:41,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:45:41 BoogieIcfgContainer [2021-10-13 06:45:41,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:45:41,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:45:41,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:45:41,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:45:41,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:45:18" (1/3) ... [2021-10-13 06:45:41,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76648d51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:45:41, skipping insertion in model container [2021-10-13 06:45:41,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:19" (2/3) ... [2021-10-13 06:45:41,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76648d51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:45:41, skipping insertion in model container [2021-10-13 06:45:41,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:45:41" (3/3) ... [2021-10-13 06:45:41,168 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label37.c [2021-10-13 06:45:41,173 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:45:41,173 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 06:45:41,217 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:45:41,224 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 06:45:41,224 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 06:45:41,237 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:45:41,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 06:45:41,242 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:45:41,243 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 06:45:41,243 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:45:41,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:45:41,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1191227817, now seen corresponding path program 1 times [2021-10-13 06:45:41,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:45:41,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042670192] [2021-10-13 06:45:41,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:45:41,260 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:45:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:45:41,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:45:41,459 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 06:45:41,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042670192] [2021-10-13 06:45:41,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042670192] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 06:45:41,460 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:45:41,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 06:45:41,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556540082] [2021-10-13 06:45:41,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:45:41,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 06:45:41,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:45:41,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:45:41,482 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:45:41,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:45:41,596 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-13 06:45:41,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:45:41,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-13 06:45:41,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:45:41,605 INFO L225 Difference]: With dead ends: 23 [2021-10-13 06:45:41,606 INFO L226 Difference]: Without dead ends: 11 [2021-10-13 06:45:41,608 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:45:41,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-13 06:45:41,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-13 06:45:41,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:45:41,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-13 06:45:41,639 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-13 06:45:41,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:45:41,639 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-13 06:45:41,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:45:41,640 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-13 06:45:41,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 06:45:41,640 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:45:41,640 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-13 06:45:41,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 06:45:41,641 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:45:41,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:45:41,642 INFO L82 PathProgramCache]: Analyzing trace with hash -530154217, now seen corresponding path program 1 times [2021-10-13 06:45:41,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:45:41,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581949293] [2021-10-13 06:45:41,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:45:41,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:45:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:45:42,304 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:45:42,305 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 06:45:42,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581949293] [2021-10-13 06:45:42,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581949293] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 06:45:42,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831452515] [2021-10-13 06:45:42,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:45:42,307 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:45:42,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:45:42,312 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 06:45:42,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 06:45:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:45:42,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 06:45:42,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:45:46,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:45:46,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:51:46,569 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-13 06:51:46,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [643763040] [2021-10-13 06:51:46,594 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-13 06:51:46,595 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 06:51:46,600 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 06:51:46,606 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 06:51:46,607 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 06:51:46,646 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:51:46,648 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 06:51:46,649 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:51:46,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 06:51:46,651 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 06:51:46,651 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:51:46,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 06:51:46,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-13 06:51:46,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:51:46,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:51:46,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:51:46,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-13 06:51:46,706 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:51:46,708 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 06:51:46,708 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:51:46,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 06:51:46,711 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 06:51:46,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:46,731 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:51:46,735 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:51:46,739 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-13 06:51:46,740 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 06:51:46,741 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:155, output treesize:158 [2021-10-13 06:51:46,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:51:46,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:51:46,955 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_10| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 06:51:46,960 INFO L168 Benchmark]: Toolchain (without parser) took 388573.29 ms. Allocated memory was 90.2 MB in the beginning and 4.1 GB in the end (delta: 4.0 GB). Free memory was 50.2 MB in the beginning and 3.3 GB in the end (delta: -3.3 GB). Peak memory consumption was 698.7 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:46,960 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory was 69.4 MB in the beginning and 69.4 MB in the end (delta: 55.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:51:46,961 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1082.89 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 50.0 MB in the beginning and 58.2 MB in the end (delta: -8.2 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:46,961 INFO L168 Benchmark]: Boogie Procedure Inliner took 172.45 ms. Allocated memory is still 115.3 MB. Free memory was 58.2 MB in the beginning and 77.0 MB in the end (delta: -18.9 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:46,962 INFO L168 Benchmark]: Boogie Preprocessor took 140.86 ms. Allocated memory is still 115.3 MB. Free memory was 77.0 MB in the beginning and 67.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:46,962 INFO L168 Benchmark]: RCFGBuilder took 21367.04 ms. Allocated memory was 115.3 MB in the beginning and 1.6 GB in the end (delta: 1.5 GB). Free memory was 67.6 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 439.0 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:46,963 INFO L168 Benchmark]: TraceAbstraction took 365798.82 ms. Allocated memory was 1.6 GB in the beginning and 4.1 GB in the end (delta: 2.4 GB). Free memory was 1.5 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 549.2 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:46,966 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory was 69.4 MB in the beginning and 69.4 MB in the end (delta: 55.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1082.89 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 50.0 MB in the beginning and 58.2 MB in the end (delta: -8.2 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 172.45 ms. Allocated memory is still 115.3 MB. Free memory was 58.2 MB in the beginning and 77.0 MB in the end (delta: -18.9 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 140.86 ms. Allocated memory is still 115.3 MB. Free memory was 77.0 MB in the beginning and 67.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 21367.04 ms. Allocated memory was 115.3 MB in the beginning and 1.6 GB in the end (delta: 1.5 GB). Free memory was 67.6 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 439.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 365798.82 ms. Allocated memory was 1.6 GB in the beginning and 4.1 GB in the end (delta: 2.4 GB). Free memory was 1.5 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 549.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_10| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_10|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 06:51:47,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 06:51:49,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:51:49,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:51:49,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:51:49,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:51:49,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:51:49,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:51:49,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:51:49,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:51:49,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:51:49,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:51:49,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:51:49,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:51:49,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:51:49,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:51:49,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:51:49,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:51:49,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:51:49,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:51:49,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:51:49,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:51:49,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:51:49,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:51:49,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:51:49,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:51:49,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:51:49,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:51:49,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:51:49,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:51:49,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:51:49,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:51:49,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:51:49,957 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:51:49,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:51:49,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:51:49,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:51:49,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:51:49,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:51:49,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:51:49,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:51:49,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:51:49,966 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 06:51:50,014 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:51:50,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:51:50,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:51:50,015 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:51:50,016 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:51:50,016 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:51:50,016 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:51:50,016 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:51:50,017 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:51:50,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:51:50,018 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:51:50,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:51:50,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:51:50,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:51:50,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:51:50,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:51:50,019 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:51:50,019 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 06:51:50,020 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 06:51:50,020 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:51:50,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:51:50,020 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:51:50,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:51:50,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:51:50,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 06:51:50,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:51:50,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:51:50,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:51:50,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:51:50,022 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:51:50,023 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 06:51:50,024 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 06:51:50,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:51:50,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:51:50,024 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:51:50,025 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_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6945cc41a1307d768849218ecc1e0a83fc49d7ce [2021-10-13 06:51:50,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:51:50,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:51:50,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:51:50,472 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:51:50,474 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:51:50,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem11_label37.c [2021-10-13 06:51:50,558 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/data/d3bed47e0/1d2ff63ebb4245a99fcb63a691e0b141/FLAG27fdf5f7e [2021-10-13 06:51:51,321 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:51:51,322 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/sv-benchmarks/c/eca-rers2012/Problem11_label37.c [2021-10-13 06:51:51,339 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/data/d3bed47e0/1d2ff63ebb4245a99fcb63a691e0b141/FLAG27fdf5f7e [2021-10-13 06:51:51,445 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/data/d3bed47e0/1d2ff63ebb4245a99fcb63a691e0b141 [2021-10-13 06:51:51,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:51:51,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:51:51,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:51:51,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:51:51,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:51:51,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:51:51" (1/1) ... [2021-10-13 06:51:51,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13a3fd1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:51, skipping insertion in model container [2021-10-13 06:51:51,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:51:51" (1/1) ... [2021-10-13 06:51:51,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:51:51,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:51:51,926 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/sv-benchmarks/c/eca-rers2012/Problem11_label37.c[7136,7149] [2021-10-13 06:51:52,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:51:52,342 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:51:52,399 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/sv-benchmarks/c/eca-rers2012/Problem11_label37.c[7136,7149] [2021-10-13 06:51:52,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:51:52,643 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:51:52,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:52 WrapperNode [2021-10-13 06:51:52,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:51:52,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:51:52,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:51:52,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:51:52,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:52" (1/1) ... [2021-10-13 06:51:52,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:52" (1/1) ... [2021-10-13 06:51:52,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:51:52,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:51:52,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:51:52,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:51:52,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:52" (1/1) ... [2021-10-13 06:51:52,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:52" (1/1) ... [2021-10-13 06:51:52,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:52" (1/1) ... [2021-10-13 06:51:52,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:52" (1/1) ... [2021-10-13 06:51:52,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:52" (1/1) ... [2021-10-13 06:51:52,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:52" (1/1) ... [2021-10-13 06:51:52,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:52" (1/1) ... [2021-10-13 06:51:52,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:51:52,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:51:52,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:51:52,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:51:52,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:52" (1/1) ... [2021-10-13 06:51:52,935 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:51:52,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:51:52,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:51:52,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:51:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 06:51:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:51:53,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:51:53,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:52:01,506 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:52:01,506 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 06:52:01,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:52:01 BoogieIcfgContainer [2021-10-13 06:52:01,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:52:01,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:52:01,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:52:01,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:52:01,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:51:51" (1/3) ... [2021-10-13 06:52:01,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3002042b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:52:01, skipping insertion in model container [2021-10-13 06:52:01,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:52" (2/3) ... [2021-10-13 06:52:01,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3002042b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:52:01, skipping insertion in model container [2021-10-13 06:52:01,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:52:01" (3/3) ... [2021-10-13 06:52:01,527 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label37.c [2021-10-13 06:52:01,533 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:52:01,533 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 06:52:01,588 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:52:01,595 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 06:52:01,596 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 06:52:01,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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) [2021-10-13 06:52:01,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-13 06:52:01,630 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:52:01,631 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:52:01,632 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:52:01,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:52:01,638 INFO L82 PathProgramCache]: Analyzing trace with hash 301649817, now seen corresponding path program 1 times [2021-10-13 06:52:01,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:52:01,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188104588] [2021-10-13 06:52:01,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:52:01,653 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:52:01,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:52:01,659 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:52:01,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 06:52:01,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:52:01,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:52:01,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:52:02,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:52:02,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:52:02,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:52:02,567 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:52:02,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188104588] [2021-10-13 06:52:02,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188104588] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:52:02,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:52:02,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 06:52:02,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197662110] [2021-10-13 06:52:02,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:52:02,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:52:02,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:52:02,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:52:02,598 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-10-13 06:52:16,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:52:16,602 INFO L93 Difference]: Finished difference Result 966 states and 1746 transitions. [2021-10-13 06:52:16,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:52:16,610 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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 49 [2021-10-13 06:52:16,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:52:16,634 INFO L225 Difference]: With dead ends: 966 [2021-10-13 06:52:16,634 INFO L226 Difference]: Without dead ends: 616 [2021-10-13 06:52:16,639 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:52:16,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2021-10-13 06:52:16,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 600. [2021-10-13 06:52:16,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 599 states have (on average 1.5191986644407345) internal successors, (910), 599 states have internal predecessors, (910), 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) [2021-10-13 06:52:16,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 910 transitions. [2021-10-13 06:52:16,718 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 910 transitions. Word has length 49 [2021-10-13 06:52:16,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:52:16,719 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 910 transitions. [2021-10-13 06:52:16,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-10-13 06:52:16,719 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 910 transitions. [2021-10-13 06:52:16,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-10-13 06:52:16,726 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:52:16,726 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:52:16,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-13 06:52:16,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:52:16,938 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:52:16,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:52:16,939 INFO L82 PathProgramCache]: Analyzing trace with hash -751552539, now seen corresponding path program 1 times [2021-10-13 06:52:16,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:52:16,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266034802] [2021-10-13 06:52:16,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:52:16,948 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:52:16,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:52:16,950 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:52:16,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 06:52:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:52:17,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:52:17,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:52:17,683 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:52:17,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:52:18,235 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:52:18,235 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:52:18,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [266034802] [2021-10-13 06:52:18,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [266034802] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:52:18,236 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:52:18,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 06:52:18,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51067149] [2021-10-13 06:52:18,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:52:18,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:52:18,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:52:18,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:52:18,240 INFO L87 Difference]: Start difference. First operand 600 states and 910 transitions. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2021-10-13 06:52:39,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:52:39,611 INFO L93 Difference]: Finished difference Result 2309 states and 3522 transitions. [2021-10-13 06:52:39,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:52:39,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 3 states have internal predecessors, (192), 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 120 [2021-10-13 06:52:39,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:52:39,632 INFO L225 Difference]: With dead ends: 2309 [2021-10-13 06:52:39,633 INFO L226 Difference]: Without dead ends: 1711 [2021-10-13 06:52:39,636 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:52:39,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2021-10-13 06:52:39,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1343. [2021-10-13 06:52:39,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1343 states, 1342 states have (on average 1.3405365126676603) internal successors, (1799), 1342 states have internal predecessors, (1799), 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) [2021-10-13 06:52:39,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 1799 transitions. [2021-10-13 06:52:39,708 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 1799 transitions. Word has length 120 [2021-10-13 06:52:39,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:52:39,709 INFO L470 AbstractCegarLoop]: Abstraction has 1343 states and 1799 transitions. [2021-10-13 06:52:39,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2021-10-13 06:52:39,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 1799 transitions. [2021-10-13 06:52:39,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-10-13 06:52:39,717 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:52:39,717 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:52:39,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 06:52:39,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:52:39,931 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:52:39,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:52:39,931 INFO L82 PathProgramCache]: Analyzing trace with hash 683606856, now seen corresponding path program 1 times [2021-10-13 06:52:39,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:52:39,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146119396] [2021-10-13 06:52:39,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:52:39,936 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:52:39,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:52:39,937 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:52:39,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 06:52:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:52:40,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:52:40,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:52:40,769 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:52:40,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:52:41,403 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:52:41,403 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:52:41,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146119396] [2021-10-13 06:52:41,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146119396] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:52:41,404 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:52:41,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 06:52:41,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192145660] [2021-10-13 06:52:41,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:52:41,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:52:41,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:52:41,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:52:41,408 INFO L87 Difference]: Start difference. First operand 1343 states and 1799 transitions. Second operand has 4 states, 4 states have (on average 54.5) internal successors, (218), 3 states have internal predecessors, (218), 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) [2021-10-13 06:52:53,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:52:53,411 INFO L93 Difference]: Finished difference Result 3975 states and 5353 transitions. [2021-10-13 06:52:53,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:52:53,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 3 states have internal predecessors, (218), 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 133 [2021-10-13 06:52:53,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:52:53,435 INFO L225 Difference]: With dead ends: 3975 [2021-10-13 06:52:53,435 INFO L226 Difference]: Without dead ends: 2634 [2021-10-13 06:52:53,437 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:52:53,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2021-10-13 06:52:53,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 2263. [2021-10-13 06:52:53,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2263 states, 2262 states have (on average 1.2519893899204244) internal successors, (2832), 2262 states have internal predecessors, (2832), 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) [2021-10-13 06:52:53,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2263 states to 2263 states and 2832 transitions. [2021-10-13 06:52:53,507 INFO L78 Accepts]: Start accepts. Automaton has 2263 states and 2832 transitions. Word has length 133 [2021-10-13 06:52:53,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:52:53,508 INFO L470 AbstractCegarLoop]: Abstraction has 2263 states and 2832 transitions. [2021-10-13 06:52:53,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 3 states have internal predecessors, (218), 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) [2021-10-13 06:52:53,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2263 states and 2832 transitions. [2021-10-13 06:52:53,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-10-13 06:52:53,515 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:52:53,515 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:52:53,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 06:52:53,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:52:53,728 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:52:53,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:52:53,729 INFO L82 PathProgramCache]: Analyzing trace with hash 2073470789, now seen corresponding path program 1 times [2021-10-13 06:52:53,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:52:53,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202956061] [2021-10-13 06:52:53,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:52:53,733 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:52:53,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:52:53,734 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:52:53,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 06:52:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:52:54,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:52:54,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:52:54,545 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:52:54,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:52:55,003 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:52:55,004 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:52:55,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1202956061] [2021-10-13 06:52:55,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1202956061] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:52:55,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:52:55,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 06:52:55,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530947286] [2021-10-13 06:52:55,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:52:55,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:52:55,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:52:55,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:52:55,008 INFO L87 Difference]: Start difference. First operand 2263 states and 2832 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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) [2021-10-13 06:53:05,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:53:05,007 INFO L93 Difference]: Finished difference Result 6570 states and 8544 transitions. [2021-10-13 06:53:05,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:53:05,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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 176 [2021-10-13 06:53:05,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:53:05,032 INFO L225 Difference]: With dead ends: 6570 [2021-10-13 06:53:05,033 INFO L226 Difference]: Without dead ends: 4493 [2021-10-13 06:53:05,036 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:53:05,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4493 states. [2021-10-13 06:53:05,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4493 to 3364. [2021-10-13 06:53:05,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3364 states, 3363 states have (on average 1.2417484388938447) internal successors, (4176), 3363 states have internal predecessors, (4176), 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) [2021-10-13 06:53:05,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3364 states to 3364 states and 4176 transitions. [2021-10-13 06:53:05,142 INFO L78 Accepts]: Start accepts. Automaton has 3364 states and 4176 transitions. Word has length 176 [2021-10-13 06:53:05,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:53:05,143 INFO L470 AbstractCegarLoop]: Abstraction has 3364 states and 4176 transitions. [2021-10-13 06:53:05,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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) [2021-10-13 06:53:05,144 INFO L276 IsEmpty]: Start isEmpty. Operand 3364 states and 4176 transitions. [2021-10-13 06:53:05,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-10-13 06:53:05,151 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:53:05,151 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:53:05,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 06:53:05,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:53:05,364 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:53:05,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:53:05,366 INFO L82 PathProgramCache]: Analyzing trace with hash 585046371, now seen corresponding path program 1 times [2021-10-13 06:53:05,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:53:05,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580788775] [2021-10-13 06:53:05,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:53:05,369 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:53:05,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:53:05,370 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:53:05,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 06:53:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:53:05,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 06:53:05,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:53:07,045 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 93 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:53:07,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:53:08,320 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 93 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:53:08,320 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:53:08,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580788775] [2021-10-13 06:53:08,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580788775] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:53:08,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1518504457] [2021-10-13 06:53:08,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:53:08,324 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 06:53:08,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 06:53:08,331 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 06:53:08,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-10-13 06:53:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:53:09,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 06:53:09,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:53:10,455 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 93 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:53:10,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:53:11,666 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 93 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:53:11,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1518504457] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:53:11,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416017956] [2021-10-13 06:53:11,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:53:11,668 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:53:11,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:53:11,682 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 06:53:11,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-13 06:53:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:53:12,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 06:53:12,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:53:13,656 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 93 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:53:13,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:53:15,683 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:53:15,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416017956] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 06:53:15,683 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 5 imperfect interpolant sequences. [2021-10-13 06:53:15,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3, 3, 3] total 6 [2021-10-13 06:53:15,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794303799] [2021-10-13 06:53:15,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 06:53:15,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:53:15,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 06:53:15,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-13 06:53:15,686 INFO L87 Difference]: Start difference. First operand 3364 states and 4176 transitions. Second operand has 5 states, 5 states have (on average 55.2) internal successors, (276), 4 states have internal predecessors, (276), 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) [2021-10-13 06:54:31,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:54:31,257 INFO L93 Difference]: Finished difference Result 10790 states and 13858 transitions. [2021-10-13 06:54:31,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 06:54:31,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.2) internal successors, (276), 4 states have internal predecessors, (276), 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 276 [2021-10-13 06:54:31,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:54:31,306 INFO L225 Difference]: With dead ends: 10790 [2021-10-13 06:54:31,306 INFO L226 Difference]: Without dead ends: 8168 [2021-10-13 06:54:31,311 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1651 GetRequests, 1645 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 69.1ms TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-13 06:54:31,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8168 states. [2021-10-13 06:54:31,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8168 to 5946. [2021-10-13 06:54:31,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5946 states, 5945 states have (on average 1.2390243902439024) internal successors, (7366), 5945 states have internal predecessors, (7366), 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) [2021-10-13 06:54:31,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5946 states to 5946 states and 7366 transitions. [2021-10-13 06:54:31,495 INFO L78 Accepts]: Start accepts. Automaton has 5946 states and 7366 transitions. Word has length 276 [2021-10-13 06:54:31,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:54:31,496 INFO L470 AbstractCegarLoop]: Abstraction has 5946 states and 7366 transitions. [2021-10-13 06:54:31,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.2) internal successors, (276), 4 states have internal predecessors, (276), 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) [2021-10-13 06:54:31,496 INFO L276 IsEmpty]: Start isEmpty. Operand 5946 states and 7366 transitions. [2021-10-13 06:54:31,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2021-10-13 06:54:31,508 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:54:31,510 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:54:31,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-10-13 06:54:31,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-13 06:54:31,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-13 06:54:32,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:54:32,127 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:54:32,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:54:32,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1963186737, now seen corresponding path program 1 times [2021-10-13 06:54:32,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:54:32,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1304790208] [2021-10-13 06:54:32,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:54:32,132 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:54:32,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:54:32,133 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:54:32,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 06:54:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:54:33,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:54:33,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:54:34,134 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:54:34,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:54:35,050 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:54:35,050 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:54:35,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1304790208] [2021-10-13 06:54:35,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1304790208] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:54:35,051 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:54:35,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 06:54:35,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602767573] [2021-10-13 06:54:35,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:54:35,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:54:35,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:54:35,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:54:35,053 INFO L87 Difference]: Start difference. First operand 5946 states and 7366 transitions. Second operand has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 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) [2021-10-13 06:54:47,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:54:47,258 INFO L93 Difference]: Finished difference Result 14479 states and 18091 transitions. [2021-10-13 06:54:47,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:54:47,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 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 319 [2021-10-13 06:54:47,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:54:47,302 INFO L225 Difference]: With dead ends: 14479 [2021-10-13 06:54:47,303 INFO L226 Difference]: Without dead ends: 8719 [2021-10-13 06:54:47,311 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 636 GetRequests, 634 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:54:47,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8719 states. [2021-10-13 06:54:47,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8719 to 8522. [2021-10-13 06:54:47,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8522 states, 8521 states have (on average 1.209717169346321) internal successors, (10308), 8521 states have internal predecessors, (10308), 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) [2021-10-13 06:54:47,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8522 states to 8522 states and 10308 transitions. [2021-10-13 06:54:47,582 INFO L78 Accepts]: Start accepts. Automaton has 8522 states and 10308 transitions. Word has length 319 [2021-10-13 06:54:47,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:54:47,583 INFO L470 AbstractCegarLoop]: Abstraction has 8522 states and 10308 transitions. [2021-10-13 06:54:47,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 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) [2021-10-13 06:54:47,584 INFO L276 IsEmpty]: Start isEmpty. Operand 8522 states and 10308 transitions. [2021-10-13 06:54:47,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2021-10-13 06:54:47,621 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:54:47,622 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:54:47,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-10-13 06:54:47,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:54:47,840 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:54:47,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:54:47,840 INFO L82 PathProgramCache]: Analyzing trace with hash -2087712458, now seen corresponding path program 1 times [2021-10-13 06:54:47,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:54:47,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1505416001] [2021-10-13 06:54:47,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:54:47,844 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:54:47,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:54:47,846 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:54:47,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 06:54:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:54:48,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 06:54:48,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:54:50,538 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 309 proven. 75 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-13 06:54:50,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:54:51,741 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-13 06:54:51,742 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:54:51,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1505416001] [2021-10-13 06:54:51,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1505416001] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 06:54:51,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 06:54:51,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 06:54:51,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544264752] [2021-10-13 06:54:51,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:54:51,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:54:51,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:54:51,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 06:54:51,763 INFO L87 Difference]: Start difference. First operand 8522 states and 10308 transitions. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2021-10-13 06:55:13,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:55:13,761 INFO L93 Difference]: Finished difference Result 20538 states and 24974 transitions. [2021-10-13 06:55:13,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:55:13,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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 411 [2021-10-13 06:55:13,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:55:13,808 INFO L225 Difference]: With dead ends: 20538 [2021-10-13 06:55:13,809 INFO L226 Difference]: Without dead ends: 12202 [2021-10-13 06:55:13,858 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 817 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.7ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 06:55:13,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12202 states. [2021-10-13 06:55:14,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12202 to 11834. [2021-10-13 06:55:14,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11834 states, 11833 states have (on average 1.1818642778669821) internal successors, (13985), 11833 states have internal predecessors, (13985), 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) [2021-10-13 06:55:14,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11834 states to 11834 states and 13985 transitions. [2021-10-13 06:55:14,280 INFO L78 Accepts]: Start accepts. Automaton has 11834 states and 13985 transitions. Word has length 411 [2021-10-13 06:55:14,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:55:14,280 INFO L470 AbstractCegarLoop]: Abstraction has 11834 states and 13985 transitions. [2021-10-13 06:55:14,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2021-10-13 06:55:14,281 INFO L276 IsEmpty]: Start isEmpty. Operand 11834 states and 13985 transitions. [2021-10-13 06:55:14,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2021-10-13 06:55:14,305 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:55:14,306 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:55:14,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 06:55:14,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:55:14,530 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:55:14,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:55:14,530 INFO L82 PathProgramCache]: Analyzing trace with hash 915712011, now seen corresponding path program 1 times [2021-10-13 06:55:14,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:55:14,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [805281789] [2021-10-13 06:55:14,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:55:14,534 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:55:14,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:55:14,535 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:55:14,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 06:55:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:55:16,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 06:55:16,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:55:17,513 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 320 proven. 102 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-13 06:55:17,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:55:19,193 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-13 06:55:19,193 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:55:19,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [805281789] [2021-10-13 06:55:19,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [805281789] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 06:55:19,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 06:55:19,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 06:55:19,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125761878] [2021-10-13 06:55:19,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:55:19,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:55:19,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:55:19,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 06:55:19,202 INFO L87 Difference]: Start difference. First operand 11834 states and 13985 transitions. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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) [2021-10-13 06:55:47,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:55:47,826 INFO L93 Difference]: Finished difference Result 27347 states and 32402 transitions. [2021-10-13 06:55:47,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:55:47,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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 422 [2021-10-13 06:55:47,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:55:47,842 INFO L225 Difference]: With dead ends: 27347 [2021-10-13 06:55:47,842 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 06:55:47,857 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 842 GetRequests, 839 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 06:55:47,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 06:55:47,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 06:55:47,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:55:47,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 06:55:47,858 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 422 [2021-10-13 06:55:47,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:55:47,858 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 06:55:47,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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) [2021-10-13 06:55:47,859 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 06:55:47,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 06:55:47,860 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:55:47,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-10-13 06:55:48,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:55:48,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 06:55:48,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:55:48,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:55:48,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:55:48,719 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-10-13 06:55:48,720 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,720 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-10-13 06:55:48,720 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,720 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,720 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,720 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,720 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,720 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,720 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-10-13 06:55:48,720 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-10-13 06:55:48,721 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-10-13 06:55:48,721 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,721 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,721 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,721 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,721 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,721 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,721 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,721 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,721 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,721 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,722 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-10-13 06:55:48,722 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-10-13 06:55:48,722 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-10-13 06:55:48,722 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,722 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-10-13 06:55:48,722 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-10-13 06:55:48,722 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,722 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,722 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,722 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,722 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,723 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,723 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-10-13 06:55:48,723 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-10-13 06:55:48,723 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-10-13 06:55:48,723 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,723 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,723 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,724 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse1 (not (= ~a25~0 (_ bv12 32)))) (.cse0 (not (bvslt (_ bv4294967253 32) ~a23~0)))) (or (and (not (bvslt (_ bv4294967253 32) (bvadd ~a23~0 (_ bv4294367212 32)))) .cse0) (not (bvslt (_ bv277 32) ~a29~0)) (and (not (= (_ bv13 32) ~a25~0)) .cse1) (and .cse1 .cse0) (not (bvsge (_ bv138 32) ~a23~0)) (not (= ~a4~0 (_ bv1 32))))) [2021-10-13 06:55:48,724 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,724 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-10-13 06:55:48,724 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-10-13 06:55:48,724 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,724 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,724 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,724 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,724 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,724 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,724 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-10-13 06:55:48,725 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-10-13 06:55:48,725 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-10-13 06:55:48,725 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-10-13 06:55:48,725 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,725 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,725 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,725 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,725 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,725 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,725 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,725 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-10-13 06:55:48,726 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-10-13 06:55:48,726 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-10-13 06:55:48,726 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,726 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,726 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,726 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,726 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,726 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,726 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,731 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,732 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,732 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-10-13 06:55:48,732 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-10-13 06:55:48,732 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-10-13 06:55:48,732 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,733 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse1 (not (= ~a25~0 (_ bv12 32)))) (.cse0 (not (bvslt (_ bv4294967253 32) ~a23~0)))) (or (and (not (bvslt (_ bv4294967253 32) (bvadd ~a23~0 (_ bv4294367212 32)))) .cse0) (not (bvslt (_ bv277 32) ~a29~0)) (and (not (= (_ bv13 32) ~a25~0)) .cse1) (and .cse1 .cse0) (not (bvsge (_ bv138 32) ~a23~0)) (not (= ~a4~0 (_ bv1 32))))) [2021-10-13 06:55:48,733 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,733 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,734 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,734 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,734 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,734 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,734 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,734 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,734 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-10-13 06:55:48,735 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-10-13 06:55:48,735 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-10-13 06:55:48,735 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-10-13 06:55:48,735 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-10-13 06:55:48,735 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-10-13 06:55:48,735 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-10-13 06:55:48,736 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,736 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,736 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,737 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,737 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,737 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,737 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,737 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,737 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,738 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,738 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 06:55:48,740 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-10-13 06:55:48,740 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-10-13 06:55:48,740 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-10-13 06:55:48,740 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-10-13 06:55:48,740 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,740 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,741 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,741 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,741 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,741 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-10-13 06:55:48,741 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-10-13 06:55:48,742 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-10-13 06:55:48,742 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,742 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,743 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,743 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,743 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-10-13 06:55:48,743 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-10-13 06:55:48,743 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,743 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,743 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,744 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,744 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,744 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,744 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-10-13 06:55:48,744 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-10-13 06:55:48,744 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,744 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,745 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-10-13 06:55:48,745 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-10-13 06:55:48,745 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-10-13 06:55:48,745 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 06:55:48,745 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 163) no Hoare annotation was computed. [2021-10-13 06:55:48,745 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,746 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,746 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,746 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,746 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,746 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,746 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,746 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-10-13 06:55:48,747 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-10-13 06:55:48,747 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-10-13 06:55:48,747 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-10-13 06:55:48,747 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-10-13 06:55:48,747 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-10-13 06:55:48,747 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-10-13 06:55:48,747 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,748 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,748 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-10-13 06:55:48,748 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-10-13 06:55:48,748 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,748 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,748 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,748 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,749 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,749 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-10-13 06:55:48,749 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-10-13 06:55:48,749 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-10-13 06:55:48,749 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,749 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,749 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,750 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,750 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,750 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,750 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-10-13 06:55:48,750 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-10-13 06:55:48,750 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-10-13 06:55:48,750 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,751 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,751 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,751 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,751 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,751 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,751 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,751 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,752 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-10-13 06:55:48,752 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-10-13 06:55:48,752 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-10-13 06:55:48,752 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,752 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,752 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,753 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,753 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,753 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,753 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,753 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,753 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,753 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,754 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,754 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-10-13 06:55:48,754 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-10-13 06:55:48,754 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-13 06:55:48,754 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-10-13 06:55:48,754 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-10-13 06:55:48,754 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,755 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,755 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,755 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,755 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,755 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,755 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,755 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-10-13 06:55:48,756 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-10-13 06:55:48,756 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-10-13 06:55:48,756 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,756 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,756 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,756 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-10-13 06:55:48,756 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-10-13 06:55:48,757 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,757 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,757 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,757 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,757 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,757 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-10-13 06:55:48,757 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-10-13 06:55:48,758 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,758 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,758 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-10-13 06:55:48,758 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-10-13 06:55:48,758 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,758 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 06:55:48,758 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,759 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,759 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,759 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,759 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,759 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-10-13 06:55:48,759 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-10-13 06:55:48,760 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-10-13 06:55:48,760 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-10-13 06:55:48,760 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,760 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,760 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,760 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,760 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,761 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,761 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,761 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,761 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-10-13 06:55:48,762 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-10-13 06:55:48,762 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-10-13 06:55:48,763 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-10-13 06:55:48,763 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-10-13 06:55:48,763 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-10-13 06:55:48,763 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,763 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,764 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,764 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,764 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,765 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,765 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,766 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-10-13 06:55:48,766 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-10-13 06:55:48,766 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 06:55:48,766 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,766 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,766 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,767 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,767 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,767 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,767 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-10-13 06:55:48,767 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-10-13 06:55:48,767 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,767 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,768 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,768 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,768 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,768 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,768 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,768 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-10-13 06:55:48,768 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:48,769 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,769 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,769 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-10-13 06:55:48,769 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-10-13 06:55:48,769 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-10-13 06:55:48,769 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-10-13 06:55:48,774 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 06:55:48,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:55:48 BoogieIcfgContainer [2021-10-13 06:55:48,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 06:55:48,798 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 06:55:48,798 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 06:55:48,798 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 06:55:48,799 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:52:01" (3/4) ... [2021-10-13 06:55:48,802 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 06:55:48,826 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 06:55:48,832 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 06:55:48,834 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 06:55:48,835 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 06:55:49,068 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 06:55:49,068 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 06:55:49,070 INFO L168 Benchmark]: Toolchain (without parser) took 237615.37 ms. Allocated memory was 56.6 MB in the beginning and 176.2 MB in the end (delta: 119.5 MB). Free memory was 31.4 MB in the beginning and 98.8 MB in the end (delta: -67.4 MB). Peak memory consumption was 99.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:55:49,070 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 56.6 MB. Free memory is still 38.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:55:49,071 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1187.07 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 31.2 MB in the beginning and 31.9 MB in the end (delta: -732.6 kB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-10-13 06:55:49,071 INFO L168 Benchmark]: Boogie Procedure Inliner took 159.50 ms. Allocated memory is still 73.4 MB. Free memory was 31.9 MB in the beginning and 47.9 MB in the end (delta: -16.0 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2021-10-13 06:55:49,072 INFO L168 Benchmark]: Boogie Preprocessor took 109.21 ms. Allocated memory is still 73.4 MB. Free memory was 47.9 MB in the beginning and 40.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:55:49,072 INFO L168 Benchmark]: RCFGBuilder took 8594.72 ms. Allocated memory was 73.4 MB in the beginning and 100.7 MB in the end (delta: 27.3 MB). Free memory was 40.8 MB in the beginning and 41.0 MB in the end (delta: -166.0 kB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. [2021-10-13 06:55:49,073 INFO L168 Benchmark]: TraceAbstraction took 227285.79 ms. Allocated memory was 100.7 MB in the beginning and 176.2 MB in the end (delta: 75.5 MB). Free memory was 41.0 MB in the beginning and 59.2 MB in the end (delta: -18.2 MB). Peak memory consumption was 64.3 MB. Max. memory is 16.1 GB. [2021-10-13 06:55:49,073 INFO L168 Benchmark]: Witness Printer took 270.24 ms. Allocated memory is still 176.2 MB. Free memory was 59.2 MB in the beginning and 98.8 MB in the end (delta: -39.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:55:49,076 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 56.6 MB. Free memory is still 38.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1187.07 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 31.2 MB in the beginning and 31.9 MB in the end (delta: -732.6 kB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 159.50 ms. Allocated memory is still 73.4 MB. Free memory was 31.9 MB in the beginning and 47.9 MB in the end (delta: -16.0 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 109.21 ms. Allocated memory is still 73.4 MB. Free memory was 47.9 MB in the beginning and 40.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 8594.72 ms. Allocated memory was 73.4 MB in the beginning and 100.7 MB in the end (delta: 27.3 MB). Free memory was 40.8 MB in the beginning and 41.0 MB in the end (delta: -166.0 kB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 227285.79 ms. Allocated memory was 100.7 MB in the beginning and 176.2 MB in the end (delta: 75.5 MB). Free memory was 41.0 MB in the beginning and 59.2 MB in the end (delta: -18.2 MB). Peak memory consumption was 64.3 MB. Max. memory is 16.1 GB. * Witness Printer took 270.24 ms. Allocated memory is still 176.2 MB. Free memory was 59.2 MB in the beginning and 98.8 MB in the end (delta: -39.6 MB). Peak memory consumption was 8.4 MB. 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 - PositiveResult [Line: 163]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 227187.5ms, OverallIterations: 8, TraceHistogramMax: 4, EmptinessCheckTime: 115.3ms, AutomataDifference: 196178.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 655.7ms, InitialAbstractionConstructionTime: 19.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1225 SDtfs, 2580 SDslu, 264 SDs, 0 SdLazy, 7125 SolverSat, 2029 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 179345.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4897 GetRequests, 4875 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 169.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11834occurred in iteration=7, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1189.8ms AutomataMinimizationTime, 8 MinimizatonAttempts, 4671 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 176 NumberOfFragments, 85 HoareAnnotationTreeSize, 3 FomulaSimplifications, 5762 FormulaSimplificationTreeSizeReduction, 389.2ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 208 FormulaSimplificationTreeSizeReductionInter, 259.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 276.9ms SsaConstructionTime, 1677.1ms SatisfiabilityAnalysisTime, 20255.5ms InterpolantComputationTime, 2458 NumberOfCodeBlocks, 2458 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 4896 ConstructedInterpolants, 0 QuantifiedInterpolants, 13686 SizeOfPredicates, 1 NumberOfNonLiveVariables, 3068 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 20 InterpolantComputations, 13 PerfectInterpolantSequences, 2990/3662 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((!~bvslt32(4294967253bv32, ~bvadd64(a23, 4294367212bv32)) && !~bvslt32(4294967253bv32, a23)) || !~bvslt32(277bv32, a29)) || (!(13bv32 == a25) && !(a25 == 12bv32))) || (!(a25 == 12bv32) && !~bvslt32(4294967253bv32, a23))) || !~bvsge32(138bv32, a23)) || !(a4 == 1bv32) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((!~bvslt32(4294967253bv32, ~bvadd64(a23, 4294367212bv32)) && !~bvslt32(4294967253bv32, a23)) || !~bvslt32(277bv32, a29)) || (!(13bv32 == a25) && !(a25 == 12bv32))) || (!(a25 == 12bv32) && !~bvslt32(4294967253bv32, a23))) || !~bvsge32(138bv32, a23)) || !(a4 == 1bv32) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 06:55:49,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc4f0bfd-2ad9-4418-9e08-58c591d4c5b6/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...