./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label05.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_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/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_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/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_52c9da1f-5783-4468-85d8-8a354811575c/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 9a2e0f33ac5b7c0fe5cd7ffdd1eac9c075d8b0ce ....................................................................................................................................................................................................................................................................................................................................................... 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_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/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_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/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_52c9da1f-5783-4468-85d8-8a354811575c/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 9a2e0f33ac5b7c0fe5cd7ffdd1eac9c075d8b0ce ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 07:34:11,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:34:11,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:34:11,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:34:11,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:34:11,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:34:11,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:34:11,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:34:11,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:34:11,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:34:11,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:34:11,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:34:11,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:34:11,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:34:11,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:34:11,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:34:11,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:34:11,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:34:11,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:34:11,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:34:11,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:34:11,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:34:11,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:34:11,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:34:11,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:34:11,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:34:11,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:34:11,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:34:11,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:34:11,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:34:11,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:34:11,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:34:11,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:34:11,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:34:11,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:34:11,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:34:12,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:34:12,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:34:12,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:34:12,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:34:12,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:34:12,004 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:34:12,049 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:34:12,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:34:12,050 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:34:12,050 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:34:12,051 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:34:12,051 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:34:12,051 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:34:12,051 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:34:12,051 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:34:12,052 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:34:12,052 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:34:12,052 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:34:12,052 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:34:12,053 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:34:12,053 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:34:12,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:34:12,054 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:34:12,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:34:12,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:34:12,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:34:12,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:34:12,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:34:12,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:34:12,055 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:34:12,056 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:34:12,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:34:12,056 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:34:12,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:34:12,062 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:34:12,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:34:12,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:34:12,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:34:12,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:34:12,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:34:12,064 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:34:12,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:34:12,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:34:12,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:34:12,066 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:34:12,066 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_52c9da1f-5783-4468-85d8-8a354811575c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a2e0f33ac5b7c0fe5cd7ffdd1eac9c075d8b0ce [2021-10-13 07:34:12,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:34:12,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:34:12,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:34:12,444 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:34:12,445 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:34:12,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem14_label05.c [2021-10-13 07:34:12,533 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/data/b5663cfde/aa421223be7d44e69ffb108e7cd2d93d/FLAGc14527d24 [2021-10-13 07:34:13,218 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:34:13,219 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/sv-benchmarks/c/eca-rers2012/Problem14_label05.c [2021-10-13 07:34:13,236 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/data/b5663cfde/aa421223be7d44e69ffb108e7cd2d93d/FLAGc14527d24 [2021-10-13 07:34:13,443 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/data/b5663cfde/aa421223be7d44e69ffb108e7cd2d93d [2021-10-13 07:34:13,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:34:13,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:34:13,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:34:13,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:34:13,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:34:13,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:34:13" (1/1) ... [2021-10-13 07:34:13,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6772753c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:13, skipping insertion in model container [2021-10-13 07:34:13,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:34:13" (1/1) ... [2021-10-13 07:34:13,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:34:13,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:34:13,884 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_52c9da1f-5783-4468-85d8-8a354811575c/sv-benchmarks/c/eca-rers2012/Problem14_label05.c[6428,6441] [2021-10-13 07:34:14,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:34:14,109 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:34:14,165 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_52c9da1f-5783-4468-85d8-8a354811575c/sv-benchmarks/c/eca-rers2012/Problem14_label05.c[6428,6441] [2021-10-13 07:34:14,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:34:14,363 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:34:14,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:14 WrapperNode [2021-10-13 07:34:14,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:34:14,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:34:14,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:34:14,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:34:14,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:14" (1/1) ... [2021-10-13 07:34:14,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:14" (1/1) ... [2021-10-13 07:34:14,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:34:14,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:34:14,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:34:14,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:34:14,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:14" (1/1) ... [2021-10-13 07:34:14,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:14" (1/1) ... [2021-10-13 07:34:14,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:14" (1/1) ... [2021-10-13 07:34:14,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:14" (1/1) ... [2021-10-13 07:34:14,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:14" (1/1) ... [2021-10-13 07:34:14,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:14" (1/1) ... [2021-10-13 07:34:14,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:14" (1/1) ... [2021-10-13 07:34:14,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:34:14,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:34:14,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:34:14,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:34:14,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:14" (1/1) ... [2021-10-13 07:34:14,676 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:34:14,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:34:14,711 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:34:14,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:34:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:34:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:34:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:34:14,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:34:29,665 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:34:29,665 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:34:29,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:34:29 BoogieIcfgContainer [2021-10-13 07:34:29,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:34:29,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:34:29,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:34:29,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:34:29,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:34:13" (1/3) ... [2021-10-13 07:34:29,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18492ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:34:29, skipping insertion in model container [2021-10-13 07:34:29,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:14" (2/3) ... [2021-10-13 07:34:29,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18492ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:34:29, skipping insertion in model container [2021-10-13 07:34:29,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:34:29" (3/3) ... [2021-10-13 07:34:29,680 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label05.c [2021-10-13 07:34:29,687 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:34:29,687 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:34:29,760 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:34:29,773 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 07:34:29,773 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:34:29,792 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 07:34:29,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 07:34:29,803 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:34:29,803 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 07:34:29,805 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:34:29,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:34:29,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1065582573, now seen corresponding path program 1 times [2021-10-13 07:34:29,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:34:29,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934466221] [2021-10-13 07:34:29,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:29,832 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:34:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:34:30,116 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 07:34:30,117 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:34:30,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934466221] [2021-10-13 07:34:30,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934466221] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:34:30,118 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:34:30,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:34:30,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99315595] [2021-10-13 07:34:30,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:34:30,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:34:30,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:34:30,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:34:30,159 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 07:34:30,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:34:30,244 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-13 07:34:30,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:34:30,246 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 07:34:30,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:34:30,254 INFO L225 Difference]: With dead ends: 23 [2021-10-13 07:34:30,254 INFO L226 Difference]: Without dead ends: 11 [2021-10-13 07:34:30,259 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:34:30,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-13 07:34:30,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-13 07:34:30,288 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 07:34:30,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-13 07:34:30,291 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-13 07:34:30,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:34:30,291 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-13 07:34:30,292 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 07:34:30,292 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-13 07:34:30,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:34:30,293 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:34:30,293 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-13 07:34:30,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:34:30,294 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:34:30,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:34:30,298 INFO L82 PathProgramCache]: Analyzing trace with hash 289865709, now seen corresponding path program 1 times [2021-10-13 07:34:30,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:34:30,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163720074] [2021-10-13 07:34:30,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:30,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:34:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:34:30,840 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 07:34:30,841 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:34:30,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163720074] [2021-10-13 07:34:30,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163720074] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:34:30,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400873958] [2021-10-13 07:34:30,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:30,842 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:34:30,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:34:30,844 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:34:30,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:34:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:34:30,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 07:34:31,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:35:10,773 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 07:35:10,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:38:41,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-13 07:38:41,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1371498601] [2021-10-13 07:38:41,349 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-13 07:38:41,350 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:38:41,354 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:38:41,360 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:38:41,360 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:38:41,401 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:38:41,406 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:38:41,407 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:38:41,409 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:38:41,410 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:38:41,411 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:38:41,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:38:41,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-13 07:38:41,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:38:41,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:38:41,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:38:41,459 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 07:38:41,460 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:38:41,461 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:38:41,462 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:38:41,463 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:38:41,464 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 07:38:41,466 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:38:41,482 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:38:41,484 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:38:41,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-13 07:38:41,486 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 07:38:41,487 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:152 [2021-10-13 07:38:41,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:38:41,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:38:41,703 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 07:38:41,706 INFO L168 Benchmark]: Toolchain (without parser) took 268256.86 ms. Allocated memory was 104.9 MB in the beginning and 2.0 GB in the end (delta: 1.9 GB). Free memory was 61.3 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 825.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:38:41,706 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 104.9 MB. Free memory is still 79.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:38:41,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 919.03 ms. Allocated memory is still 104.9 MB. Free memory was 61.1 MB in the beginning and 58.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:38:41,707 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.04 ms. Allocated memory is still 104.9 MB. Free memory was 58.0 MB in the beginning and 48.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:38:41,711 INFO L168 Benchmark]: Boogie Preprocessor took 180.31 ms. Allocated memory was 104.9 MB in the beginning and 142.6 MB in the end (delta: 37.7 MB). Free memory was 48.3 MB in the beginning and 112.1 MB in the end (delta: -63.9 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:38:41,713 INFO L168 Benchmark]: RCFGBuilder took 15006.29 ms. Allocated memory was 142.6 MB in the beginning and 656.4 MB in the end (delta: 513.8 MB). Free memory was 112.1 MB in the beginning and 413.7 MB in the end (delta: -301.6 MB). Peak memory consumption was 295.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:38:41,715 INFO L168 Benchmark]: TraceAbstraction took 252032.29 ms. Allocated memory was 656.4 MB in the beginning and 2.0 GB in the end (delta: 1.3 GB). Free memory was 412.8 MB in the beginning and 1.1 GB in the end (delta: -691.5 MB). Peak memory consumption was 626.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:38:41,722 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 104.9 MB. Free memory is still 79.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 919.03 ms. Allocated memory is still 104.9 MB. Free memory was 61.1 MB in the beginning and 58.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 110.04 ms. Allocated memory is still 104.9 MB. Free memory was 58.0 MB in the beginning and 48.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 180.31 ms. Allocated memory was 104.9 MB in the beginning and 142.6 MB in the end (delta: 37.7 MB). Free memory was 48.3 MB in the beginning and 112.1 MB in the end (delta: -63.9 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 15006.29 ms. Allocated memory was 142.6 MB in the beginning and 656.4 MB in the end (delta: 513.8 MB). Free memory was 112.1 MB in the beginning and 413.7 MB in the end (delta: -301.6 MB). Peak memory consumption was 295.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 252032.29 ms. Allocated memory was 656.4 MB in the beginning and 2.0 GB in the end (delta: 1.3 GB). Free memory was 412.8 MB in the beginning and 1.1 GB in the end (delta: -691.5 MB). Peak memory consumption was 626.6 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 07:38:41,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/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 07:38:44,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:38:44,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:38:44,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:38:44,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:38:44,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:38:44,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:38:44,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:38:44,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:38:44,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:38:44,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:38:44,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:38:44,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:38:44,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:38:44,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:38:44,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:38:44,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:38:44,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:38:44,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:38:44,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:38:44,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:38:44,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:38:44,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:38:44,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:38:44,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:38:44,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:38:44,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:38:44,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:38:44,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:38:44,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:38:44,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:38:44,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:38:44,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:38:44,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:38:44,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:38:44,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:38:44,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:38:44,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:38:44,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:38:44,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:38:44,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:38:44,421 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:38:44,469 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:38:44,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:38:44,471 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:38:44,471 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:38:44,471 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:38:44,472 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:38:44,472 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:38:44,472 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:38:44,472 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:38:44,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:38:44,475 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:38:44,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:38:44,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:38:44,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:38:44,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:38:44,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:38:44,477 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:38:44,477 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:38:44,477 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:38:44,477 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:38:44,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:38:44,478 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:38:44,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:38:44,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:38:44,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:38:44,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:38:44,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:38:44,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:38:44,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:38:44,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:38:44,480 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:38:44,480 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:38:44,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:38:44,481 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:38:44,481 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:38:44,482 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_52c9da1f-5783-4468-85d8-8a354811575c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a2e0f33ac5b7c0fe5cd7ffdd1eac9c075d8b0ce [2021-10-13 07:38:44,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:38:44,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:38:44,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:38:44,890 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:38:44,891 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:38:44,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem14_label05.c [2021-10-13 07:38:44,974 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/data/bb700d2f4/2e58cfc6c55b4b81adf4dbd16a4ed60b/FLAG8740ce20d [2021-10-13 07:38:45,736 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:38:45,736 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/sv-benchmarks/c/eca-rers2012/Problem14_label05.c [2021-10-13 07:38:45,749 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/data/bb700d2f4/2e58cfc6c55b4b81adf4dbd16a4ed60b/FLAG8740ce20d [2021-10-13 07:38:45,976 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/data/bb700d2f4/2e58cfc6c55b4b81adf4dbd16a4ed60b [2021-10-13 07:38:45,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:38:45,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:38:45,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:38:45,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:38:45,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:38:45,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:38:45" (1/1) ... [2021-10-13 07:38:45,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d204aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:45, skipping insertion in model container [2021-10-13 07:38:45,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:38:45" (1/1) ... [2021-10-13 07:38:45,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:38:46,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:38:46,310 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_52c9da1f-5783-4468-85d8-8a354811575c/sv-benchmarks/c/eca-rers2012/Problem14_label05.c[6428,6441] [2021-10-13 07:38:46,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:38:46,617 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:38:46,646 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_52c9da1f-5783-4468-85d8-8a354811575c/sv-benchmarks/c/eca-rers2012/Problem14_label05.c[6428,6441] [2021-10-13 07:38:46,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:38:46,782 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:38:46,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:46 WrapperNode [2021-10-13 07:38:46,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:38:46,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:38:46,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:38:46,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:38:46,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:46" (1/1) ... [2021-10-13 07:38:46,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:46" (1/1) ... [2021-10-13 07:38:46,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:38:46,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:38:46,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:38:46,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:38:46,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:46" (1/1) ... [2021-10-13 07:38:46,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:46" (1/1) ... [2021-10-13 07:38:46,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:46" (1/1) ... [2021-10-13 07:38:46,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:46" (1/1) ... [2021-10-13 07:38:46,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:46" (1/1) ... [2021-10-13 07:38:46,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:46" (1/1) ... [2021-10-13 07:38:46,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:46" (1/1) ... [2021-10-13 07:38:46,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:38:46,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:38:46,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:38:46,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:38:46,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:46" (1/1) ... [2021-10-13 07:38:46,978 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:38:46,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:38:47,009 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:38:47,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:38:47,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:38:47,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:38:47,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:38:47,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:38:50,460 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:38:50,461 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:38:50,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:38:50 BoogieIcfgContainer [2021-10-13 07:38:50,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:38:50,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:38:50,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:38:50,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:38:50,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:38:45" (1/3) ... [2021-10-13 07:38:50,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735323f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:38:50, skipping insertion in model container [2021-10-13 07:38:50,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:46" (2/3) ... [2021-10-13 07:38:50,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735323f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:38:50, skipping insertion in model container [2021-10-13 07:38:50,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:38:50" (3/3) ... [2021-10-13 07:38:50,473 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label05.c [2021-10-13 07:38:50,479 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:38:50,479 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:38:50,543 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:38:50,552 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 07:38:50,552 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:38:50,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 07:38:50,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-13 07:38:50,613 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:38:50,613 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:38:50,614 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:38:50,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:38:50,618 INFO L82 PathProgramCache]: Analyzing trace with hash -696204111, now seen corresponding path program 1 times [2021-10-13 07:38:50,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:38:50,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168737077] [2021-10-13 07:38:50,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:38:50,634 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:38:50,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:38:50,637 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:38:50,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:38:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:38:50,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:38:50,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:38:51,163 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 07:38:51,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:38:51,499 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 07:38:51,500 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:38:51,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1168737077] [2021-10-13 07:38:51,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1168737077] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:38:51,501 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:38:51,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:38:51,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358296274] [2021-10-13 07:38:51,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:38:51,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:38:51,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:38:51,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:38:51,533 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 31.25) internal successors, (125), 3 states have internal predecessors, (125), 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 07:39:00,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:39:00,169 INFO L93 Difference]: Finished difference Result 866 states and 1574 transitions. [2021-10-13 07:39:00,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:39:00,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 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 63 [2021-10-13 07:39:00,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:39:00,191 INFO L225 Difference]: With dead ends: 866 [2021-10-13 07:39:00,192 INFO L226 Difference]: Without dead ends: 538 [2021-10-13 07:39:00,196 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:39:00,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-10-13 07:39:00,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 360. [2021-10-13 07:39:00,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.4206128133704736) internal successors, (510), 359 states have internal predecessors, (510), 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 07:39:00,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2021-10-13 07:39:00,258 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 63 [2021-10-13 07:39:00,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:39:00,259 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2021-10-13 07:39:00,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 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 07:39:00,259 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2021-10-13 07:39:00,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-10-13 07:39:00,266 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:39:00,266 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, 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] [2021-10-13 07:39:00,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:39:00,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:39:00,486 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:39:00,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:39:00,487 INFO L82 PathProgramCache]: Analyzing trace with hash -18617793, now seen corresponding path program 1 times [2021-10-13 07:39:00,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:39:00,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038826757] [2021-10-13 07:39:00,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:39:00,490 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:39:00,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:39:00,492 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:39:00,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:39:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:39:00,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:39:00,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:39:01,143 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:39:01,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:39:02,158 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:39:02,159 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:39:02,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038826757] [2021-10-13 07:39:02,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038826757] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:39:02,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:39:02,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:39:02,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412788298] [2021-10-13 07:39:02,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:39:02,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:39:02,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:39:02,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:39:02,165 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 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 07:39:07,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:39:07,061 INFO L93 Difference]: Finished difference Result 1430 states and 2032 transitions. [2021-10-13 07:39:07,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:39:07,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 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 142 [2021-10-13 07:39:07,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:39:07,067 INFO L225 Difference]: With dead ends: 1430 [2021-10-13 07:39:07,068 INFO L226 Difference]: Without dead ends: 1072 [2021-10-13 07:39:07,070 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:39:07,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-10-13 07:39:07,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2021-10-13 07:39:07,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.3165266106442577) internal successors, (1410), 1071 states have internal predecessors, (1410), 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 07:39:07,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1410 transitions. [2021-10-13 07:39:07,131 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1410 transitions. Word has length 142 [2021-10-13 07:39:07,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:39:07,132 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1410 transitions. [2021-10-13 07:39:07,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 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 07:39:07,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1410 transitions. [2021-10-13 07:39:07,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-10-13 07:39:07,139 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:39:07,140 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, 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] [2021-10-13 07:39:07,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:39:07,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:39:07,355 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:39:07,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:39:07,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1089725456, now seen corresponding path program 1 times [2021-10-13 07:39:07,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:39:07,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200088667] [2021-10-13 07:39:07,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:39:07,359 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:39:07,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:39:07,361 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:39:07,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:39:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:39:07,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:39:07,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:39:09,065 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:39:09,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:39:13,844 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:39:13,844 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:39:13,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200088667] [2021-10-13 07:39:13,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1200088667] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:39:13,845 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:39:13,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:39:13,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826232289] [2021-10-13 07:39:13,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:39:13,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:39:13,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:39:13,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:39:13,849 INFO L87 Difference]: Start difference. First operand 1072 states and 1410 transitions. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 3 states have internal predecessors, (336), 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 07:39:20,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:39:20,955 INFO L93 Difference]: Finished difference Result 2498 states and 3356 transitions. [2021-10-13 07:39:20,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:39:20,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 3 states have internal predecessors, (336), 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 199 [2021-10-13 07:39:20,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:39:20,979 INFO L225 Difference]: With dead ends: 2498 [2021-10-13 07:39:20,979 INFO L226 Difference]: Without dead ends: 1606 [2021-10-13 07:39:20,981 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:39:20,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-10-13 07:39:21,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2021-10-13 07:39:21,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.3115264797507789) internal successors, (2105), 1605 states have internal predecessors, (2105), 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 07:39:21,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 2105 transitions. [2021-10-13 07:39:21,034 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 2105 transitions. Word has length 199 [2021-10-13 07:39:21,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:39:21,035 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 2105 transitions. [2021-10-13 07:39:21,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 3 states have internal predecessors, (336), 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 07:39:21,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 2105 transitions. [2021-10-13 07:39:21,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-10-13 07:39:21,040 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:39:21,040 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-13 07:39:21,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:39:21,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:39:21,262 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:39:21,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:39:21,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1057921197, now seen corresponding path program 1 times [2021-10-13 07:39:21,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:39:21,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1662224495] [2021-10-13 07:39:21,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:39:21,267 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:39:21,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:39:21,275 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:39:21,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:39:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:39:21,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:39:21,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:39:22,507 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-10-13 07:39:22,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:39:23,091 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-10-13 07:39:23,091 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:39:23,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1662224495] [2021-10-13 07:39:23,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1662224495] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:39:23,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:39:23,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:39:23,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493418477] [2021-10-13 07:39:23,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:39:23,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:39:23,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:39:23,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:39:23,095 INFO L87 Difference]: Start difference. First operand 1606 states and 2105 transitions. Second operand has 4 states, 4 states have (on average 56.75) internal successors, (227), 3 states have internal predecessors, (227), 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 07:39:27,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:39:27,660 INFO L93 Difference]: Finished difference Result 4456 states and 6001 transitions. [2021-10-13 07:39:27,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:39:27,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 3 states have internal predecessors, (227), 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 220 [2021-10-13 07:39:27,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:39:27,679 INFO L225 Difference]: With dead ends: 4456 [2021-10-13 07:39:27,680 INFO L226 Difference]: Without dead ends: 3030 [2021-10-13 07:39:27,682 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:39:27,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-10-13 07:39:27,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2496. [2021-10-13 07:39:27,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.2509018036072144) internal successors, (3121), 2495 states have internal predecessors, (3121), 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 07:39:27,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 3121 transitions. [2021-10-13 07:39:27,749 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 3121 transitions. Word has length 220 [2021-10-13 07:39:27,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:39:27,750 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 3121 transitions. [2021-10-13 07:39:27,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 3 states have internal predecessors, (227), 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 07:39:27,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 3121 transitions. [2021-10-13 07:39:27,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-10-13 07:39:27,755 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:39:27,755 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:39:27,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:39:27,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:39:27,968 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:39:27,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:39:27,969 INFO L82 PathProgramCache]: Analyzing trace with hash -128243222, now seen corresponding path program 1 times [2021-10-13 07:39:27,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:39:27,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651960933] [2021-10-13 07:39:27,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:39:27,970 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:39:27,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:39:27,972 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:39:27,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:39:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:39:28,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:39:28,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:39:29,958 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-10-13 07:39:29,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:39:31,477 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-10-13 07:39:31,478 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:39:31,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651960933] [2021-10-13 07:39:31,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651960933] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:39:31,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:39:31,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-13 07:39:31,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129208728] [2021-10-13 07:39:31,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:39:31,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:39:31,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:39:31,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:39:31,482 INFO L87 Difference]: Start difference. First operand 2496 states and 3121 transitions. Second operand has 6 states, 6 states have (on average 52.166666666666664) internal successors, (313), 5 states have internal predecessors, (313), 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 07:39:36,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:39:36,621 INFO L93 Difference]: Finished difference Result 5226 states and 6512 transitions. [2021-10-13 07:39:36,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:39:36,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 52.166666666666664) internal successors, (313), 5 states have internal predecessors, (313), 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 234 [2021-10-13 07:39:36,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:39:36,642 INFO L225 Difference]: With dead ends: 5226 [2021-10-13 07:39:36,642 INFO L226 Difference]: Without dead ends: 2852 [2021-10-13 07:39:36,646 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 54.3ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:39:36,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-10-13 07:39:36,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2496. [2021-10-13 07:39:36,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.0945891783567134) internal successors, (2731), 2495 states have internal predecessors, (2731), 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 07:39:36,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2731 transitions. [2021-10-13 07:39:36,732 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2731 transitions. Word has length 234 [2021-10-13 07:39:36,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:39:36,732 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 2731 transitions. [2021-10-13 07:39:36,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.166666666666664) internal successors, (313), 5 states have internal predecessors, (313), 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 07:39:36,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2731 transitions. [2021-10-13 07:39:36,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2021-10-13 07:39:36,740 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:39:36,740 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 07:39:36,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 07:39:36,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:39:36,955 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:39:36,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:39:36,955 INFO L82 PathProgramCache]: Analyzing trace with hash -504139761, now seen corresponding path program 1 times [2021-10-13 07:39:36,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:39:36,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [758093257] [2021-10-13 07:39:36,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:39:36,958 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:39:36,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:39:36,960 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:39:37,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 07:39:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:39:37,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:39:37,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:39:39,970 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-10-13 07:39:39,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:39:43,781 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-10-13 07:39:43,781 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:39:43,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [758093257] [2021-10-13 07:39:43,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [758093257] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:39:43,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:39:43,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:39:43,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481945093] [2021-10-13 07:39:43,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:39:43,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:39:43,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:39:43,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:39:43,785 INFO L87 Difference]: Start difference. First operand 2496 states and 2731 transitions. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 3 states have internal predecessors, (335), 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 07:39:47,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:39:47,682 INFO L93 Difference]: Finished difference Result 5524 states and 6075 transitions. [2021-10-13 07:39:47,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:39:47,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 3 states have internal predecessors, (335), 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 367 [2021-10-13 07:39:47,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:39:47,700 INFO L225 Difference]: With dead ends: 5524 [2021-10-13 07:39:47,701 INFO L226 Difference]: Without dead ends: 3208 [2021-10-13 07:39:47,704 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 732 GetRequests, 730 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:39:47,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-10-13 07:39:47,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2852. [2021-10-13 07:39:47,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.0887407927043142) internal successors, (3104), 2851 states have internal predecessors, (3104), 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 07:39:47,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3104 transitions. [2021-10-13 07:39:47,769 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3104 transitions. Word has length 367 [2021-10-13 07:39:47,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:39:47,785 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 3104 transitions. [2021-10-13 07:39:47,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 3 states have internal predecessors, (335), 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 07:39:47,785 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3104 transitions. [2021-10-13 07:39:47,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2021-10-13 07:39:47,797 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:39:47,797 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2021-10-13 07:39:47,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 07:39:48,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:39:48,013 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:39:48,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:39:48,013 INFO L82 PathProgramCache]: Analyzing trace with hash 559870709, now seen corresponding path program 1 times [2021-10-13 07:39:48,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:39:48,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320807220] [2021-10-13 07:39:48,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:39:48,015 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:39:48,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:39:48,016 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:39:48,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 07:39:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:39:49,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 07:39:49,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:39:58,112 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 243 proven. 416 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-10-13 07:39:58,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:40:21,517 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 590 proven. 69 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-10-13 07:40:21,518 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:40:21,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320807220] [2021-10-13 07:40:21,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320807220] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:40:21,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [630977290] [2021-10-13 07:40:21,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:40:21,521 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:40:21,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:40:21,522 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:40:21,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-10-13 07:40:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:40:25,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:40:25,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:40:27,836 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2021-10-13 07:40:27,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:40:29,498 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2021-10-13 07:40:29,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [630977290] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:40:29,499 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:40:29,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [10, 10] total 26 [2021-10-13 07:40:29,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652134532] [2021-10-13 07:40:29,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 07:40:29,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:40:29,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 07:40:29,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=458, Unknown=0, NotChecked=0, Total=650 [2021-10-13 07:40:29,502 INFO L87 Difference]: Start difference. First operand 2852 states and 3104 transitions. Second operand has 10 states, 10 states have (on average 25.2) internal successors, (252), 10 states have internal predecessors, (252), 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 07:40:33,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:40:33,731 INFO L93 Difference]: Finished difference Result 7248 states and 7879 transitions. [2021-10-13 07:40:33,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 07:40:33,731 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 25.2) internal successors, (252), 10 states have internal predecessors, (252), 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 501 [2021-10-13 07:40:33,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:40:33,733 INFO L225 Difference]: With dead ends: 7248 [2021-10-13 07:40:33,734 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:40:33,744 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2002 GetRequests, 1977 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1086.9ms TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2021-10-13 07:40:33,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:40:33,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:40:33,745 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 07:40:33,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:40:33,747 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 501 [2021-10-13 07:40:33,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:40:33,748 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:40:33,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 25.2) internal successors, (252), 10 states have internal predecessors, (252), 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 07:40:33,749 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:40:33,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:40:33,754 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:40:33,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 07:40:33,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-10-13 07:40:34,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:40:34,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:40:34,178 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:40:34,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:40:34,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:40:35,341 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-10-13 07:40:35,341 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-13 07:40:35,342 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-10-13 07:40:35,342 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-10-13 07:40:35,342 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-10-13 07:40:35,342 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,342 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,342 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,342 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-10-13 07:40:35,342 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-10-13 07:40:35,342 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-13 07:40:35,343 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-13 07:40:35,343 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-13 07:40:35,343 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-10-13 07:40:35,343 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-10-13 07:40:35,343 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-10-13 07:40:35,343 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,343 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,343 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,343 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-10-13 07:40:35,343 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-13 07:40:35,344 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-13 07:40:35,344 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-13 07:40:35,344 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-10-13 07:40:35,344 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-10-13 07:40:35,344 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-10-13 07:40:35,344 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-10-13 07:40:35,344 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-10-13 07:40:35,344 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,344 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,345 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,345 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-10-13 07:40:35,345 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-13 07:40:35,345 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-13 07:40:35,345 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-13 07:40:35,345 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-10-13 07:40:35,345 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-10-13 07:40:35,345 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-10-13 07:40:35,345 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,345 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,346 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,346 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-10-13 07:40:35,346 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-13 07:40:35,346 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-13 07:40:35,346 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-13 07:40:35,346 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-10-13 07:40:35,346 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-10-13 07:40:35,346 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-10-13 07:40:35,346 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-10-13 07:40:35,347 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,347 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,347 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,347 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-10-13 07:40:35,347 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-10-13 07:40:35,347 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-13 07:40:35,347 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-13 07:40:35,347 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-13 07:40:35,347 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-10-13 07:40:35,347 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-10-13 07:40:35,348 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-10-13 07:40:35,348 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,348 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,348 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,348 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-10-13 07:40:35,348 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-13 07:40:35,355 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-13 07:40:35,355 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-13 07:40:35,355 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-10-13 07:40:35,356 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-10-13 07:40:35,356 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-10-13 07:40:35,356 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-10-13 07:40:35,356 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-10-13 07:40:35,356 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,356 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,356 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,357 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-10-13 07:40:35,357 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-13 07:40:35,358 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-13 07:40:35,358 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-13 07:40:35,358 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-10-13 07:40:35,358 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-10-13 07:40:35,358 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-10-13 07:40:35,359 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:40:35,359 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,359 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,359 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,359 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-10-13 07:40:35,359 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-13 07:40:35,360 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-13 07:40:35,360 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-13 07:40:35,360 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-10-13 07:40:35,360 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-10-13 07:40:35,360 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-10-13 07:40:35,360 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-10-13 07:40:35,361 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-10-13 07:40:35,361 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,361 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,361 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,362 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-10-13 07:40:35,362 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-13 07:40:35,362 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-13 07:40:35,362 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-13 07:40:35,362 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-10-13 07:40:35,362 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-10-13 07:40:35,363 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-10-13 07:40:35,363 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-10-13 07:40:35,363 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,363 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,364 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,364 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-13 07:40:35,364 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-13 07:40:35,364 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-13 07:40:35,364 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 07:40:35,365 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-10-13 07:40:35,365 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 203) no Hoare annotation was computed. [2021-10-13 07:40:35,365 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-10-13 07:40:35,365 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-10-13 07:40:35,365 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-10-13 07:40:35,366 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-10-13 07:40:35,366 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,366 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,367 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,367 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-10-13 07:40:35,367 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-10-13 07:40:35,367 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-13 07:40:35,367 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-13 07:40:35,367 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-13 07:40:35,367 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-10-13 07:40:35,368 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-10-13 07:40:35,368 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-10-13 07:40:35,368 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,368 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,368 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,368 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-13 07:40:35,369 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-13 07:40:35,369 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-13 07:40:35,369 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-10-13 07:40:35,369 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-10-13 07:40:35,369 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-10-13 07:40:35,370 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-10-13 07:40:35,371 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-10-13 07:40:35,371 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,371 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,372 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,372 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-10-13 07:40:35,372 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-10-13 07:40:35,372 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-13 07:40:35,372 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-13 07:40:35,372 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-13 07:40:35,373 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-10-13 07:40:35,373 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-10-13 07:40:35,375 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-10-13 07:40:35,375 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,377 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,377 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,377 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-10-13 07:40:35,377 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-13 07:40:35,378 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-13 07:40:35,378 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-13 07:40:35,378 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-10-13 07:40:35,378 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-10-13 07:40:35,378 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-10-13 07:40:35,378 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-10-13 07:40:35,378 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,379 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,379 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,379 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-10-13 07:40:35,379 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-13 07:40:35,379 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-13 07:40:35,379 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-13 07:40:35,379 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-10-13 07:40:35,380 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-10-13 07:40:35,380 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-10-13 07:40:35,380 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-10-13 07:40:35,381 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,381 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,381 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-10-13 07:40:35,381 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-13 07:40:35,381 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-13 07:40:35,381 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-10-13 07:40:35,381 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-10-13 07:40:35,382 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-10-13 07:40:35,382 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-10-13 07:40:35,382 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-10-13 07:40:35,382 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,382 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,383 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-10-13 07:40:35,383 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:40:35,383 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-13 07:40:35,383 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-13 07:40:35,384 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-10-13 07:40:35,384 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-10-13 07:40:35,384 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-10-13 07:40:35,384 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,384 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,385 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse5 (not (bvsge (_ bv11 32) ~a12~0)))) (let ((.cse0 (not (= ~a15~0 (_ bv9 32)))) (.cse4 (= (_ bv1 32) ~a24~0)) (.cse1 (or (not (= (_ bv7 32) ~a21~0)) (not (bvslt (_ bv4294967253 32) ~a12~0)) .cse5)) (.cse3 (bvsle ~a12~0 (_ bv4294967253 32))) (.cse2 (not (= (_ bv6 32) ~a21~0)))) (or (and .cse0 .cse1) (and (not (= (_ bv10 32) ~a21~0)) .cse2 .cse1) (and .cse3 .cse4) (and .cse0 (or (not .cse4) (not (= (_ bv5 32) ~a15~0)))) (and .cse1 (not .cse3) (or .cse2 .cse5))))) [2021-10-13 07:40:35,385 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-10-13 07:40:35,385 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-10-13 07:40:35,385 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-13 07:40:35,385 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-13 07:40:35,385 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-10-13 07:40:35,385 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-10-13 07:40:35,386 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-10-13 07:40:35,386 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-10-13 07:40:35,386 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,386 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,386 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-10-13 07:40:35,387 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-10-13 07:40:35,387 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-10-13 07:40:35,387 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-13 07:40:35,387 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-13 07:40:35,387 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-10-13 07:40:35,387 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-10-13 07:40:35,387 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-10-13 07:40:35,388 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,388 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,388 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 07:40:35,388 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-10-13 07:40:35,388 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-10-13 07:40:35,388 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-13 07:40:35,388 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-13 07:40:35,389 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-10-13 07:40:35,389 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-10-13 07:40:35,389 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,389 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,389 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-13 07:40:35,389 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,389 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-10-13 07:40:35,390 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse5 (not (bvsge (_ bv11 32) ~a12~0)))) (let ((.cse0 (not (= ~a15~0 (_ bv9 32)))) (.cse4 (= (_ bv1 32) ~a24~0)) (.cse1 (or (not (= (_ bv7 32) ~a21~0)) (not (bvslt (_ bv4294967253 32) ~a12~0)) .cse5)) (.cse3 (bvsle ~a12~0 (_ bv4294967253 32))) (.cse2 (not (= (_ bv6 32) ~a21~0)))) (or (and .cse0 .cse1) (and (not (= (_ bv10 32) ~a21~0)) .cse2 .cse1) (and .cse3 .cse4) (and .cse0 (or (not .cse4) (not (= (_ bv5 32) ~a15~0)))) (and .cse1 (not .cse3) (or .cse2 .cse5))))) [2021-10-13 07:40:35,390 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-10-13 07:40:35,390 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-10-13 07:40:35,391 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-13 07:40:35,391 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-13 07:40:35,391 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-13 07:40:35,391 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-10-13 07:40:35,391 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-10-13 07:40:35,391 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-10-13 07:40:35,391 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-10-13 07:40:35,392 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,392 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,392 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:40:35,392 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-10-13 07:40:35,392 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-13 07:40:35,392 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-13 07:40:35,392 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-13 07:40:35,398 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:40:35,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:40:35 BoogieIcfgContainer [2021-10-13 07:40:35,430 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:40:35,431 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:40:35,431 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:40:35,432 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:40:35,432 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:38:50" (3/4) ... [2021-10-13 07:40:35,435 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:40:35,468 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 07:40:35,470 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 07:40:35,472 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:40:35,474 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:40:35,633 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:40:35,634 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:40:35,635 INFO L168 Benchmark]: Toolchain (without parser) took 109653.84 ms. Allocated memory was 60.8 MB in the beginning and 283.1 MB in the end (delta: 222.3 MB). Free memory was 38.9 MB in the beginning and 151.9 MB in the end (delta: -113.0 MB). Peak memory consumption was 108.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:40:35,636 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 60.8 MB. Free memory is still 41.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:40:35,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 801.80 ms. Allocated memory was 60.8 MB in the beginning and 86.0 MB in the end (delta: 25.2 MB). Free memory was 38.8 MB in the beginning and 63.2 MB in the end (delta: -24.4 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:40:35,637 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.02 ms. Allocated memory is still 86.0 MB. Free memory was 62.8 MB in the beginning and 56.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:40:35,637 INFO L168 Benchmark]: Boogie Preprocessor took 92.70 ms. Allocated memory is still 86.0 MB. Free memory was 56.5 MB in the beginning and 51.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:40:35,638 INFO L168 Benchmark]: RCFGBuilder took 3494.77 ms. Allocated memory is still 86.0 MB. Free memory was 51.4 MB in the beginning and 36.0 MB in the end (delta: 15.4 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:40:35,639 INFO L168 Benchmark]: TraceAbstraction took 104964.70 ms. Allocated memory was 86.0 MB in the beginning and 283.1 MB in the end (delta: 197.1 MB). Free memory was 35.5 MB in the beginning and 170.8 MB in the end (delta: -135.3 MB). Peak memory consumption was 182.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:40:35,640 INFO L168 Benchmark]: Witness Printer took 202.74 ms. Allocated memory is still 283.1 MB. Free memory was 170.8 MB in the beginning and 151.9 MB in the end (delta: 18.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:40:35,642 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 60.8 MB. Free memory is still 41.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 801.80 ms. Allocated memory was 60.8 MB in the beginning and 86.0 MB in the end (delta: 25.2 MB). Free memory was 38.8 MB in the beginning and 63.2 MB in the end (delta: -24.4 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.02 ms. Allocated memory is still 86.0 MB. Free memory was 62.8 MB in the beginning and 56.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.70 ms. Allocated memory is still 86.0 MB. Free memory was 56.5 MB in the beginning and 51.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3494.77 ms. Allocated memory is still 86.0 MB. Free memory was 51.4 MB in the beginning and 36.0 MB in the end (delta: 15.4 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 104964.70 ms. Allocated memory was 86.0 MB in the beginning and 283.1 MB in the end (delta: 197.1 MB). Free memory was 35.5 MB in the beginning and 170.8 MB in the end (delta: -135.3 MB). Peak memory consumption was 182.7 MB. Max. memory is 16.1 GB. * Witness Printer took 202.74 ms. Allocated memory is still 283.1 MB. Free memory was 170.8 MB in the beginning and 151.9 MB in the end (delta: 18.9 MB). Peak memory consumption was 16.8 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: 203]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 104854.9ms, OverallIterations: 7, TraceHistogramMax: 5, EmptinessCheckTime: 82.7ms, AutomataDifference: 38643.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1166.9ms, InitialAbstractionConstructionTime: 19.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 390 SDtfs, 2044 SDslu, 94 SDs, 0 SdLazy, 7099 SolverSat, 1199 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32886.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4440 GetRequests, 4401 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1243.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2852occurred in iteration=6, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 381.5ms AutomataMinimizationTime, 7 MinimizatonAttempts, 1424 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 66 NumberOfFragments, 179 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2788 FormulaSimplificationTreeSizeReduction, 321.4ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 2574 FormulaSimplificationTreeSizeReductionInter, 838.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 153.6ms SsaConstructionTime, 803.8ms SatisfiabilityAnalysisTime, 54319.1ms InterpolantComputationTime, 2227 NumberOfCodeBlocks, 2227 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 4438 ConstructedInterpolants, 0 QuantifiedInterpolants, 45197 SizeOfPredicates, 23 NumberOfNonLiveVariables, 2655 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 16 InterpolantComputations, 14 PerfectInterpolantSequences, 4427/4912 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: 30]: Loop Invariant Derived loop invariant: ((((!(a15 == 9bv32) && ((!(7bv32 == a21) || !~bvslt32(4294967253bv32, a12)) || !~bvsge32(11bv32, a12))) || ((!(10bv32 == a21) && !(6bv32 == a21)) && ((!(7bv32 == a21) || !~bvslt32(4294967253bv32, a12)) || !~bvsge32(11bv32, a12)))) || (~bvsle32(a12, 4294967253bv32) && 1bv32 == a24)) || (!(a15 == 9bv32) && (!(1bv32 == a24) || !(5bv32 == a15)))) || ((((!(7bv32 == a21) || !~bvslt32(4294967253bv32, a12)) || !~bvsge32(11bv32, a12)) && !~bvsle32(a12, 4294967253bv32)) && (!(6bv32 == a21) || !~bvsge32(11bv32, a12))) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((!(a15 == 9bv32) && ((!(7bv32 == a21) || !~bvslt32(4294967253bv32, a12)) || !~bvsge32(11bv32, a12))) || ((!(10bv32 == a21) && !(6bv32 == a21)) && ((!(7bv32 == a21) || !~bvslt32(4294967253bv32, a12)) || !~bvsge32(11bv32, a12)))) || (~bvsle32(a12, 4294967253bv32) && 1bv32 == a24)) || (!(a15 == 9bv32) && (!(1bv32 == a24) || !(5bv32 == a15)))) || ((((!(7bv32 == a21) || !~bvslt32(4294967253bv32, a12)) || !~bvsge32(11bv32, a12)) && !~bvsle32(a12, 4294967253bv32)) && (!(6bv32 == a21) || !~bvsge32(11bv32, a12))) RESULT: Ultimate proved your program to be correct! [2021-10-13 07:40:35,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c9da1f-5783-4468-85d8-8a354811575c/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...