./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label39.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_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/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_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label39.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/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_62a66da5-d8ca-4a3c-955c-20c776993d54/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 d8c37a616d9409c2c9154669238125a656fa2814 ....................................................................................................................................................................................................................................................................................................................................................... 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_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/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_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label39.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/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_62a66da5-d8ca-4a3c-955c-20c776993d54/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 d8c37a616d9409c2c9154669238125a656fa2814 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 07:21:55,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:21:55,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:21:55,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:21:55,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:21:55,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:21:55,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:21:55,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:21:55,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:21:55,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:21:55,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:21:55,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:21:55,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:21:55,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:21:55,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:21:55,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:21:55,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:21:55,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:21:55,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:21:55,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:21:55,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:21:55,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:21:55,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:21:55,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:21:55,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:21:55,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:21:55,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:21:55,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:21:55,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:21:55,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:21:55,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:21:55,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:21:55,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:21:55,205 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:21:55,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:21:55,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:21:55,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:21:55,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:21:55,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:21:55,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:21:55,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:21:55,211 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:21:55,262 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:21:55,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:21:55,263 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:21:55,264 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:21:55,264 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:21:55,264 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:21:55,265 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:21:55,265 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:21:55,271 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:21:55,272 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:21:55,273 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:21:55,273 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:21:55,274 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:21:55,274 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:21:55,274 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:21:55,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:21:55,275 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:21:55,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:21:55,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:21:55,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:21:55,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:21:55,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:21:55,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:21:55,277 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:21:55,277 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:21:55,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:21:55,278 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:21:55,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:21:55,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:21:55,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:21:55,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:21:55,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:21:55,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:21:55,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:21:55,282 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:21:55,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:21:55,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:21:55,283 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:21:55,283 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:21:55,283 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_62a66da5-d8ca-4a3c-955c-20c776993d54/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8c37a616d9409c2c9154669238125a656fa2814 [2021-10-13 07:21:55,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:21:55,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:21:55,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:21:55,608 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:21:55,610 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:21:55,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem10_label39.c [2021-10-13 07:21:55,678 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/data/dbb2a74c6/710cacc1fe47418cb2614fcdacc004d0/FLAGc82e48b6f [2021-10-13 07:21:56,203 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:21:56,215 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/sv-benchmarks/c/eca-rers2012/Problem10_label39.c [2021-10-13 07:21:56,232 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/data/dbb2a74c6/710cacc1fe47418cb2614fcdacc004d0/FLAGc82e48b6f [2021-10-13 07:21:56,473 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/data/dbb2a74c6/710cacc1fe47418cb2614fcdacc004d0 [2021-10-13 07:21:56,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:21:56,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:21:56,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:21:56,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:21:56,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:21:56,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:21:56" (1/1) ... [2021-10-13 07:21:56,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c141733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:56, skipping insertion in model container [2021-10-13 07:21:56,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:21:56" (1/1) ... [2021-10-13 07:21:56,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:21:56,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:21:56,805 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_62a66da5-d8ca-4a3c-955c-20c776993d54/sv-benchmarks/c/eca-rers2012/Problem10_label39.c[3149,3162] [2021-10-13 07:21:57,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:21:57,040 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:21:57,057 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_62a66da5-d8ca-4a3c-955c-20c776993d54/sv-benchmarks/c/eca-rers2012/Problem10_label39.c[3149,3162] [2021-10-13 07:21:57,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:21:57,141 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:21:57,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:57 WrapperNode [2021-10-13 07:21:57,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:21:57,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:21:57,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:21:57,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:21:57,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:57" (1/1) ... [2021-10-13 07:21:57,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:57" (1/1) ... [2021-10-13 07:21:57,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:21:57,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:21:57,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:21:57,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:21:57,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:57" (1/1) ... [2021-10-13 07:21:57,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:57" (1/1) ... [2021-10-13 07:21:57,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:57" (1/1) ... [2021-10-13 07:21:57,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:57" (1/1) ... [2021-10-13 07:21:57,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:57" (1/1) ... [2021-10-13 07:21:57,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:57" (1/1) ... [2021-10-13 07:21:57,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:57" (1/1) ... [2021-10-13 07:21:57,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:21:57,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:21:57,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:21:57,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:21:57,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:57" (1/1) ... [2021-10-13 07:21:57,390 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:21:57,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:21:57,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:21:57,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:21:57,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:21:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:21:57,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:21:57,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:22:05,565 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:22:05,566 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:22:05,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:22:05 BoogieIcfgContainer [2021-10-13 07:22:05,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:22:05,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:22:05,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:22:05,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:22:05,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:21:56" (1/3) ... [2021-10-13 07:22:05,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef2a0e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:22:05, skipping insertion in model container [2021-10-13 07:22:05,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:57" (2/3) ... [2021-10-13 07:22:05,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef2a0e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:22:05, skipping insertion in model container [2021-10-13 07:22:05,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:22:05" (3/3) ... [2021-10-13 07:22:05,578 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label39.c [2021-10-13 07:22:05,583 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:22:05,584 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:22:05,639 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:22:05,645 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 07:22:05,645 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:22:05,656 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 07:22:05,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 07:22:05,660 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:22:05,661 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 07:22:05,661 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:22:05,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:22:05,672 INFO L82 PathProgramCache]: Analyzing trace with hash 886088092, now seen corresponding path program 1 times [2021-10-13 07:22:05,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:22:05,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412437978] [2021-10-13 07:22:05,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:22:05,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:22:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:22:05,853 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 07:22:05,854 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:22:05,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412437978] [2021-10-13 07:22:05,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412437978] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:22:05,855 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:22:05,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:22:05,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290452292] [2021-10-13 07:22:05,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:22:05,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:22:05,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:22:05,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:22:05,877 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 07:22:05,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:22:05,932 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-13 07:22:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:22:05,934 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 07:22:05,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:22:05,941 INFO L225 Difference]: With dead ends: 23 [2021-10-13 07:22:05,942 INFO L226 Difference]: Without dead ends: 11 [2021-10-13 07:22:05,944 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:22:05,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-13 07:22:05,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-13 07:22:05,970 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 07:22:05,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-13 07:22:05,972 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-13 07:22:05,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:22:05,973 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-13 07:22:05,973 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 07:22:05,973 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-13 07:22:05,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:22:05,974 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:22:05,974 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-13 07:22:05,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:22:05,975 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:22:05,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:22:05,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1945944100, now seen corresponding path program 1 times [2021-10-13 07:22:05,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:22:05,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390338053] [2021-10-13 07:22:05,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:22:05,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:22:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:22:06,417 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 07:22:06,418 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:22:06,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390338053] [2021-10-13 07:22:06,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390338053] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:22:06,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754197702] [2021-10-13 07:22:06,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:22:06,419 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:22:06,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:22:06,423 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:22:06,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:22:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:22:06,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 07:22:06,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:22:20,759 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 07:22:20,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:22:41,747 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-13 07:22:41,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [760481491] [2021-10-13 07:22:41,778 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-13 07:22:41,778 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:22:41,783 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:22:41,789 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:22:41,790 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:22:41,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:22:41,837 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:22:41,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:22:41,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:22:41,839 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:22:41,839 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:22:41,840 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:22:41,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-13 07:22:41,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:22:41,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:22:41,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:22:41,884 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 07:22:41,884 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:22:41,885 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:22:41,886 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:22:41,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:22:41,887 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 07:22:41,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:22:41,907 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:22:41,909 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:22:41,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-13 07:22:41,911 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 07:22:41,912 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:152 [2021-10-13 07:22:41,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:22:42,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:22:42,135 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 07:22:42,138 INFO L168 Benchmark]: Toolchain (without parser) took 45659.79 ms. Allocated memory was 98.6 MB in the beginning and 1.7 GB in the end (delta: 1.6 GB). Free memory was 59.5 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 461.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:22:42,138 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 98.6 MB. Free memory was 77.4 MB in the beginning and 77.3 MB in the end (delta: 62.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:22:42,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.57 ms. Allocated memory is still 98.6 MB. Free memory was 59.3 MB in the beginning and 57.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:22:42,139 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.48 ms. Allocated memory is still 98.6 MB. Free memory was 57.4 MB in the beginning and 49.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:22:42,140 INFO L168 Benchmark]: Boogie Preprocessor took 117.71 ms. Allocated memory is still 98.6 MB. Free memory was 49.3 MB in the beginning and 44.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:22:42,141 INFO L168 Benchmark]: RCFGBuilder took 8194.70 ms. Allocated memory was 98.6 MB in the beginning and 226.5 MB in the end (delta: 127.9 MB). Free memory was 44.5 MB in the beginning and 92.1 MB in the end (delta: -47.5 MB). Peak memory consumption was 126.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:22:42,141 INFO L168 Benchmark]: TraceAbstraction took 36566.20 ms. Allocated memory was 226.5 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 91.0 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 366.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:22:42,145 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 98.6 MB. Free memory was 77.4 MB in the beginning and 77.3 MB in the end (delta: 62.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 652.57 ms. Allocated memory is still 98.6 MB. Free memory was 59.3 MB in the beginning and 57.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 96.48 ms. Allocated memory is still 98.6 MB. Free memory was 57.4 MB in the beginning and 49.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 117.71 ms. Allocated memory is still 98.6 MB. Free memory was 49.3 MB in the beginning and 44.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 8194.70 ms. Allocated memory was 98.6 MB in the beginning and 226.5 MB in the end (delta: 127.9 MB). Free memory was 44.5 MB in the beginning and 92.1 MB in the end (delta: -47.5 MB). Peak memory consumption was 126.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 36566.20 ms. Allocated memory was 226.5 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 91.0 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 366.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_10| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_10|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 07:22:42,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:22:44,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:22:44,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:22:44,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:22:44,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:22:44,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:22:44,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:22:44,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:22:44,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:22:44,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:22:44,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:22:44,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:22:44,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:22:44,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:22:44,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:22:44,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:22:44,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:22:44,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:22:44,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:22:44,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:22:44,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:22:44,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:22:44,656 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:22:44,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:22:44,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:22:44,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:22:44,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:22:44,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:22:44,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:22:44,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:22:44,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:22:44,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:22:44,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:22:44,676 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:22:44,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:22:44,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:22:44,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:22:44,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:22:44,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:22:44,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:22:44,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:22:44,682 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:22:44,726 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:22:44,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:22:44,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:22:44,728 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:22:44,728 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:22:44,728 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:22:44,728 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:22:44,728 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:22:44,729 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:22:44,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:22:44,731 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:22:44,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:22:44,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:22:44,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:22:44,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:22:44,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:22:44,732 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:22:44,732 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:22:44,732 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:22:44,733 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:22:44,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:22:44,733 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:22:44,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:22:44,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:22:44,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:22:44,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:22:44,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:22:44,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:22:44,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:22:44,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:22:44,735 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:22:44,735 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:22:44,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:22:44,735 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:22:44,736 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:22:44,736 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_62a66da5-d8ca-4a3c-955c-20c776993d54/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8c37a616d9409c2c9154669238125a656fa2814 [2021-10-13 07:22:45,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:22:45,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:22:45,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:22:45,182 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:22:45,183 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:22:45,186 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem10_label39.c [2021-10-13 07:22:45,264 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/data/cd716cef1/f82e5bc24df64463805266c094bfccf4/FLAG02d7661dc [2021-10-13 07:22:45,864 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:22:45,865 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/sv-benchmarks/c/eca-rers2012/Problem10_label39.c [2021-10-13 07:22:45,879 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/data/cd716cef1/f82e5bc24df64463805266c094bfccf4/FLAG02d7661dc [2021-10-13 07:22:46,162 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/data/cd716cef1/f82e5bc24df64463805266c094bfccf4 [2021-10-13 07:22:46,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:22:46,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:22:46,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:22:46,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:22:46,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:22:46,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:22:46" (1/1) ... [2021-10-13 07:22:46,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ea7cff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:46, skipping insertion in model container [2021-10-13 07:22:46,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:22:46" (1/1) ... [2021-10-13 07:22:46,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:22:46,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:22:46,488 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_62a66da5-d8ca-4a3c-955c-20c776993d54/sv-benchmarks/c/eca-rers2012/Problem10_label39.c[3149,3162] [2021-10-13 07:22:46,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:22:46,779 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:22:46,801 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_62a66da5-d8ca-4a3c-955c-20c776993d54/sv-benchmarks/c/eca-rers2012/Problem10_label39.c[3149,3162] [2021-10-13 07:22:46,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:22:46,956 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:22:46,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:46 WrapperNode [2021-10-13 07:22:46,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:22:46,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:22:46,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:22:46,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:22:46,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:46" (1/1) ... [2021-10-13 07:22:47,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:46" (1/1) ... [2021-10-13 07:22:47,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:22:47,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:22:47,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:22:47,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:22:47,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:46" (1/1) ... [2021-10-13 07:22:47,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:46" (1/1) ... [2021-10-13 07:22:47,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:46" (1/1) ... [2021-10-13 07:22:47,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:46" (1/1) ... [2021-10-13 07:22:47,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:46" (1/1) ... [2021-10-13 07:22:47,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:46" (1/1) ... [2021-10-13 07:22:47,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:46" (1/1) ... [2021-10-13 07:22:47,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:22:47,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:22:47,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:22:47,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:22:47,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:46" (1/1) ... [2021-10-13 07:22:47,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:22:47,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:22:47,223 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:22:47,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:22:47,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:22:47,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:22:47,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:22:47,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:22:50,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:22:50,429 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:22:50,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:22:50 BoogieIcfgContainer [2021-10-13 07:22:50,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:22:50,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:22:50,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:22:50,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:22:50,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:22:46" (1/3) ... [2021-10-13 07:22:50,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aabd9c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:22:50, skipping insertion in model container [2021-10-13 07:22:50,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:46" (2/3) ... [2021-10-13 07:22:50,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aabd9c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:22:50, skipping insertion in model container [2021-10-13 07:22:50,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:22:50" (3/3) ... [2021-10-13 07:22:50,444 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label39.c [2021-10-13 07:22:50,450 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:22:50,450 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:22:50,520 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:22:50,528 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 07:22:50,528 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:22:50,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 07:22:50,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 07:22:50,564 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:22:50,565 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] [2021-10-13 07:22:50,566 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:22:50,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:22:50,571 INFO L82 PathProgramCache]: Analyzing trace with hash 678582746, now seen corresponding path program 1 times [2021-10-13 07:22:50,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:22:50,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545395739] [2021-10-13 07:22:50,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:22:50,587 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:22:50,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:22:50,592 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:22:50,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:22:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:22:50,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:22:50,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:22:50,939 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 07:22:50,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:22:51,093 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 07:22:51,094 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:22:51,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1545395739] [2021-10-13 07:22:51,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1545395739] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:22:51,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:22:51,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:22:51,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033762854] [2021-10-13 07:22:51,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:22:51,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:22:51,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:22:51,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:22:51,125 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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 07:23:03,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:03,616 INFO L93 Difference]: Finished difference Result 709 states and 1261 transitions. [2021-10-13 07:23:03,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:23:03,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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 26 [2021-10-13 07:23:03,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:03,632 INFO L225 Difference]: With dead ends: 709 [2021-10-13 07:23:03,632 INFO L226 Difference]: Without dead ends: 421 [2021-10-13 07:23:03,636 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:23:03,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-10-13 07:23:03,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2021-10-13 07:23:03,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.4428571428571428) internal successors, (606), 420 states have internal predecessors, (606), 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 07:23:03,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 606 transitions. [2021-10-13 07:23:03,722 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 606 transitions. Word has length 26 [2021-10-13 07:23:03,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:03,723 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 606 transitions. [2021-10-13 07:23:03,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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 07:23:03,723 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 606 transitions. [2021-10-13 07:23:03,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-10-13 07:23:03,727 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:03,727 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:23:03,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:03,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:03,939 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:03,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:03,940 INFO L82 PathProgramCache]: Analyzing trace with hash 353948486, now seen corresponding path program 1 times [2021-10-13 07:23:03,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:03,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277678457] [2021-10-13 07:23:03,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:03,942 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:03,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:03,943 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:03,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:23:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:04,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:23:04,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:04,363 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:04,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:04,594 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:04,594 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:04,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277678457] [2021-10-13 07:23:04,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277678457] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:04,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:23:04,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:23:04,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280715690] [2021-10-13 07:23:04,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:23:04,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:04,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:23:04,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:23:04,598 INFO L87 Difference]: Start difference. First operand 421 states and 606 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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 07:23:09,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:09,205 INFO L93 Difference]: Finished difference Result 1396 states and 2068 transitions. [2021-10-13 07:23:09,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:23:09,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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 92 [2021-10-13 07:23:09,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:09,216 INFO L225 Difference]: With dead ends: 1396 [2021-10-13 07:23:09,216 INFO L226 Difference]: Without dead ends: 1116 [2021-10-13 07:23:09,219 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:23:09,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2021-10-13 07:23:09,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2021-10-13 07:23:09,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.3237668161434977) internal successors, (1476), 1115 states have internal predecessors, (1476), 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 07:23:09,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1476 transitions. [2021-10-13 07:23:09,271 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1476 transitions. Word has length 92 [2021-10-13 07:23:09,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:09,272 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 1476 transitions. [2021-10-13 07:23:09,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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 07:23:09,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1476 transitions. [2021-10-13 07:23:09,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-10-13 07:23:09,278 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:09,278 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:23:09,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:09,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:09,490 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:09,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:09,491 INFO L82 PathProgramCache]: Analyzing trace with hash 245006671, now seen corresponding path program 1 times [2021-10-13 07:23:09,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:09,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462419281] [2021-10-13 07:23:09,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:09,493 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:09,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:09,498 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:09,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:23:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:09,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:23:09,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:10,065 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:10,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:10,428 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:10,428 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:10,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462419281] [2021-10-13 07:23:10,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462419281] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:10,429 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:23:10,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:23:10,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060943580] [2021-10-13 07:23:10,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:23:10,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:10,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:23:10,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:23:10,431 INFO L87 Difference]: Start difference. First operand 1116 states and 1476 transitions. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 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 07:23:14,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:14,891 INFO L93 Difference]: Finished difference Result 2230 states and 3020 transitions. [2021-10-13 07:23:14,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:23:14,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 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 103 [2021-10-13 07:23:14,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:14,904 INFO L225 Difference]: With dead ends: 2230 [2021-10-13 07:23:14,904 INFO L226 Difference]: Without dead ends: 1255 [2021-10-13 07:23:14,908 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:23:14,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2021-10-13 07:23:14,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2021-10-13 07:23:14,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.2240829346092503) internal successors, (1535), 1254 states have internal predecessors, (1535), 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 07:23:14,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1535 transitions. [2021-10-13 07:23:14,963 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1535 transitions. Word has length 103 [2021-10-13 07:23:14,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:14,964 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 1535 transitions. [2021-10-13 07:23:14,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 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 07:23:14,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1535 transitions. [2021-10-13 07:23:14,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-10-13 07:23:14,984 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:14,985 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:23:15,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:15,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:15,198 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:15,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:15,199 INFO L82 PathProgramCache]: Analyzing trace with hash 158152082, now seen corresponding path program 1 times [2021-10-13 07:23:15,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:15,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1547310043] [2021-10-13 07:23:15,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:15,203 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:15,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:15,204 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:15,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:23:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:15,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:23:15,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:16,041 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:16,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:16,704 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:16,705 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:16,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1547310043] [2021-10-13 07:23:16,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1547310043] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:16,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:23:16,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:23:16,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500492945] [2021-10-13 07:23:16,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:23:16,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:16,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:23:16,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:23:16,708 INFO L87 Difference]: Start difference. First operand 1255 states and 1535 transitions. Second operand has 4 states, 4 states have (on average 70.25) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:20,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:20,938 INFO L93 Difference]: Finished difference Result 3898 states and 4825 transitions. [2021-10-13 07:23:20,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:23:20,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2021-10-13 07:23:20,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:20,956 INFO L225 Difference]: With dead ends: 3898 [2021-10-13 07:23:20,957 INFO L226 Difference]: Without dead ends: 2784 [2021-10-13 07:23:20,959 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:23:20,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2021-10-13 07:23:21,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 1255. [2021-10-13 07:23:21,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.1770334928229664) internal successors, (1476), 1254 states have internal predecessors, (1476), 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 07:23:21,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1476 transitions. [2021-10-13 07:23:21,021 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1476 transitions. Word has length 153 [2021-10-13 07:23:21,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:21,023 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 1476 transitions. [2021-10-13 07:23:21,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:21,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1476 transitions. [2021-10-13 07:23:21,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-10-13 07:23:21,028 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:21,028 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 07:23:21,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:21,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:21,238 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:21,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:21,239 INFO L82 PathProgramCache]: Analyzing trace with hash -351287595, now seen corresponding path program 1 times [2021-10-13 07:23:21,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:21,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1965564492] [2021-10-13 07:23:21,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:21,243 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:21,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:21,244 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:21,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:23:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:21,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:23:21,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:23,180 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 47 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:23,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:29,511 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 65 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:29,511 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:29,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1965564492] [2021-10-13 07:23:29,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1965564492] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:23:29,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1887818238] [2021-10-13 07:23:29,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:29,512 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:23:29,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:23:29,518 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:23:29,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-10-13 07:23:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:30,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 07:23:30,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:32,868 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 97 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:32,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:35,166 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 102 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:35,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1887818238] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:23:35,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265162530] [2021-10-13 07:23:35,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:35,167 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:23:35,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:23:35,172 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:23:35,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-13 07:23:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:36,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 07:23:36,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:38,809 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:38,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:41,175 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:41,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265162530] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:41,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-13 07:23:41,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [4, 4, 8, 8] total 21 [2021-10-13 07:23:41,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483345707] [2021-10-13 07:23:41,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:23:41,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:41,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:23:41,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2021-10-13 07:23:41,180 INFO L87 Difference]: Start difference. First operand 1255 states and 1476 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 6 states have internal predecessors, (178), 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 07:23:44,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:44,013 INFO L93 Difference]: Finished difference Result 2424 states and 2861 transitions. [2021-10-13 07:23:44,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:23:44,015 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 6 states have internal predecessors, (178), 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 178 [2021-10-13 07:23:44,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:44,024 INFO L225 Difference]: With dead ends: 2424 [2021-10-13 07:23:44,025 INFO L226 Difference]: Without dead ends: 1255 [2021-10-13 07:23:44,027 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1062 GetRequests, 1040 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1360.2ms TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2021-10-13 07:23:44,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2021-10-13 07:23:44,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2021-10-13 07:23:44,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.1730462519936204) internal successors, (1471), 1254 states have internal predecessors, (1471), 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 07:23:44,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1471 transitions. [2021-10-13 07:23:44,065 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1471 transitions. Word has length 178 [2021-10-13 07:23:44,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:44,066 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 1471 transitions. [2021-10-13 07:23:44,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 6 states have internal predecessors, (178), 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 07:23:44,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1471 transitions. [2021-10-13 07:23:44,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-10-13 07:23:44,071 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:44,071 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 07:23:44,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-10-13 07:23:44,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-13 07:23:44,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:44,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:23:44,687 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:44,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:44,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1191553169, now seen corresponding path program 1 times [2021-10-13 07:23:44,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:44,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902865892] [2021-10-13 07:23:44,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:44,689 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:44,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:44,690 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:44,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 07:23:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:45,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:23:45,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:46,211 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 47 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:46,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:24:18,532 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 47 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:24:18,532 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:24:18,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902865892] [2021-10-13 07:24:18,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902865892] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:24:18,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [405630095] [2021-10-13 07:24:18,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:24:18,533 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:24:18,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:24:18,540 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:24:18,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-13 07:24:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:24:20,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:24:20,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:24:20,671 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-10-13 07:24:20,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:24:21,071 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-10-13 07:24:21,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [405630095] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:24:21,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:24:21,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3, 3] total 8 [2021-10-13 07:24:21,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047712874] [2021-10-13 07:24:21,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:24:21,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:24:21,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:24:21,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:24:21,074 INFO L87 Difference]: Start difference. First operand 1255 states and 1471 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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 07:24:24,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:24:24,917 INFO L93 Difference]: Finished difference Result 2784 states and 3267 transitions. [2021-10-13 07:24:24,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:24:24,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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 214 [2021-10-13 07:24:24,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:24:24,919 INFO L225 Difference]: With dead ends: 2784 [2021-10-13 07:24:24,919 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:24:24,938 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 852 GetRequests, 846 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 774.2ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:24:24,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:24:24,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:24:24,939 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 07:24:24,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:24:24,940 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 214 [2021-10-13 07:24:24,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:24:24,940 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:24:24,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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 07:24:24,941 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:24:24,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:24:24,944 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:24:24,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 07:24:25,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-13 07:24:25,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:24:25,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:24:25,365 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:24:25,515 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:24:25,575 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:24:26,204 INFO L857 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-13 07:24:26,204 INFO L857 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-10-13 07:24:26,204 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-10-13 07:24:26,205 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-10-13 07:24:26,205 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-10-13 07:24:26,205 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-10-13 07:24:26,205 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,205 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,205 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,206 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,206 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,206 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,206 INFO L857 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-10-13 07:24:26,207 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-13 07:24:26,207 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-13 07:24:26,207 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-13 07:24:26,208 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-13 07:24:26,208 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-13 07:24:26,208 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-13 07:24:26,208 INFO L857 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-10-13 07:24:26,209 INFO L857 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-10-13 07:24:26,209 INFO L857 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-10-13 07:24:26,209 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-10-13 07:24:26,209 INFO L857 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-10-13 07:24:26,209 INFO L857 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-10-13 07:24:26,210 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,210 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,210 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,210 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,217 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,217 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,217 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-10-13 07:24:26,217 INFO L857 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-10-13 07:24:26,218 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-10-13 07:24:26,218 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-13 07:24:26,218 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-13 07:24:26,218 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-13 07:24:26,218 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-13 07:24:26,219 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-13 07:24:26,219 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-13 07:24:26,219 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-10-13 07:24:26,219 INFO L857 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-10-13 07:24:26,219 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-10-13 07:24:26,220 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,220 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,220 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,220 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,220 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,220 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,221 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-10-13 07:24:26,221 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-10-13 07:24:26,221 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-10-13 07:24:26,221 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-13 07:24:26,221 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-13 07:24:26,222 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-13 07:24:26,222 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-13 07:24:26,222 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-13 07:24:26,222 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-13 07:24:26,223 INFO L857 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-10-13 07:24:26,223 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-10-13 07:24:26,223 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-10-13 07:24:26,223 INFO L857 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-10-13 07:24:26,223 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,224 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,224 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,224 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,224 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,224 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,225 INFO L857 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-10-13 07:24:26,225 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-10-13 07:24:26,225 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-13 07:24:26,225 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-13 07:24:26,225 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-13 07:24:26,226 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-13 07:24:26,226 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-13 07:24:26,226 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-13 07:24:26,226 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-10-13 07:24:26,226 INFO L857 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-10-13 07:24:26,227 INFO L857 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-10-13 07:24:26,227 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,227 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,227 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,228 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,228 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,228 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-10-13 07:24:26,228 INFO L857 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-10-13 07:24:26,228 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-10-13 07:24:26,229 INFO L857 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-10-13 07:24:26,229 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-13 07:24:26,229 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-13 07:24:26,229 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-13 07:24:26,229 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-13 07:24:26,230 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-13 07:24:26,230 INFO L857 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-10-13 07:24:26,230 INFO L857 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-10-13 07:24:26,230 INFO L857 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-10-13 07:24:26,230 INFO L857 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-10-13 07:24:26,231 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-10-13 07:24:26,231 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,231 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,231 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,231 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,232 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,232 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-10-13 07:24:26,232 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:24:26,232 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-13 07:24:26,232 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-13 07:24:26,233 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-13 07:24:26,233 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-13 07:24:26,233 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-13 07:24:26,233 INFO L853 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse2 (= (_ bv0 32) ~a10~0)) (.cse0 (= (_ bv14 32) ~a4~0)) (.cse1 (= (_ bv0 32) ~a12~0))) (or (and .cse0 .cse1 (not (bvsle ~a1~0 (_ bv4294967283 32)))) (and (= ~a19~0 (_ bv9 32)) .cse0 .cse1) (and (not (= (_ bv8 32) ~a19~0)) .cse0 .cse1 .cse2) (and .cse0 .cse1 (not (= (_ bv1 32) ~a10~0)) (not .cse2)) (and .cse0 .cse1 (= (_ bv10 32) ~a19~0)))) [2021-10-13 07:24:26,234 INFO L857 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-10-13 07:24:26,234 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-10-13 07:24:26,234 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-10-13 07:24:26,234 INFO L857 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-10-13 07:24:26,234 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,235 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,235 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,235 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,235 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,235 INFO L857 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-10-13 07:24:26,236 INFO L857 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-10-13 07:24:26,236 INFO L857 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-10-13 07:24:26,236 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-13 07:24:26,236 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-13 07:24:26,236 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-13 07:24:26,237 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-13 07:24:26,237 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-13 07:24:26,237 INFO L857 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-10-13 07:24:26,237 INFO L857 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-10-13 07:24:26,237 INFO L860 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-13 07:24:26,238 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-10-13 07:24:26,238 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-10-13 07:24:26,238 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-10-13 07:24:26,238 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:24:26,238 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,239 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,239 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,239 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,239 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,239 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-13 07:24:26,240 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-13 07:24:26,240 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-13 07:24:26,240 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-13 07:24:26,240 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-13 07:24:26,240 INFO L857 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-10-13 07:24:26,241 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-10-13 07:24:26,241 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-10-13 07:24:26,241 INFO L857 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-10-13 07:24:26,241 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,241 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,242 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,242 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,242 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 07:24:26,242 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,242 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-10-13 07:24:26,243 INFO L857 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-10-13 07:24:26,243 INFO L857 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-10-13 07:24:26,243 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-10-13 07:24:26,243 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-13 07:24:26,244 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-13 07:24:26,244 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-13 07:24:26,244 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-13 07:24:26,244 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-13 07:24:26,244 INFO L857 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-10-13 07:24:26,245 INFO L857 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-10-13 07:24:26,245 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-10-13 07:24:26,245 INFO L853 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse2 (= (_ bv0 32) ~a10~0)) (.cse0 (= (_ bv14 32) ~a4~0)) (.cse1 (= (_ bv0 32) ~a12~0))) (or (and .cse0 .cse1 (not (bvsle ~a1~0 (_ bv4294967283 32)))) (and (= ~a19~0 (_ bv9 32)) .cse0 .cse1) (and (not (= (_ bv8 32) ~a19~0)) .cse0 .cse1 .cse2) (and .cse0 .cse1 (not (= (_ bv1 32) ~a10~0)) (not .cse2)) (and .cse0 .cse1 (= (_ bv10 32) ~a19~0)))) [2021-10-13 07:24:26,245 INFO L857 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-10-13 07:24:26,246 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,246 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,246 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,246 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,246 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-13 07:24:26,247 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,247 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,247 INFO L857 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-10-13 07:24:26,247 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-10-13 07:24:26,247 INFO L857 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-10-13 07:24:26,248 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-13 07:24:26,248 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-13 07:24:26,248 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-13 07:24:26,248 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-13 07:24:26,248 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-13 07:24:26,249 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-13 07:24:26,249 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 07:24:26,249 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 92) no Hoare annotation was computed. [2021-10-13 07:24:26,249 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-10-13 07:24:26,249 INFO L857 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-10-13 07:24:26,250 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-10-13 07:24:26,250 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-10-13 07:24:26,250 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,250 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,250 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,251 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,251 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,251 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:24:26,251 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-10-13 07:24:26,251 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-10-13 07:24:26,252 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-10-13 07:24:26,252 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-13 07:24:26,252 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-13 07:24:26,252 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-13 07:24:26,252 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-13 07:24:26,253 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-13 07:24:26,253 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-13 07:24:26,258 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:24:26,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:24:26 BoogieIcfgContainer [2021-10-13 07:24:26,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:24:26,279 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:24:26,279 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:24:26,279 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:24:26,280 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:22:50" (3/4) ... [2021-10-13 07:24:26,284 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:24:26,306 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 07:24:26,307 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 07:24:26,309 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:24:26,310 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:24:26,431 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:24:26,431 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:24:26,433 INFO L168 Benchmark]: Toolchain (without parser) took 100265.44 ms. Allocated memory was 58.7 MB in the beginning and 117.4 MB in the end (delta: 58.7 MB). Free memory was 35.0 MB in the beginning and 54.7 MB in the end (delta: -19.8 MB). Peak memory consumption was 70.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:26,433 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 58.7 MB. Free memory is still 39.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:24:26,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 785.68 ms. Allocated memory was 58.7 MB in the beginning and 79.7 MB in the end (delta: 21.0 MB). Free memory was 34.7 MB in the beginning and 58.7 MB in the end (delta: -24.0 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:26,434 INFO L168 Benchmark]: Boogie Procedure Inliner took 127.27 ms. Allocated memory is still 79.7 MB. Free memory was 58.7 MB in the beginning and 53.4 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:26,435 INFO L168 Benchmark]: Boogie Preprocessor took 101.29 ms. Allocated memory is still 79.7 MB. Free memory was 53.4 MB in the beginning and 48.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:26,435 INFO L168 Benchmark]: RCFGBuilder took 3243.90 ms. Allocated memory is still 79.7 MB. Free memory was 48.9 MB in the beginning and 35.0 MB in the end (delta: 13.9 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:26,436 INFO L168 Benchmark]: TraceAbstraction took 95843.28 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 34.5 MB in the beginning and 31.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:26,436 INFO L168 Benchmark]: Witness Printer took 152.30 ms. Allocated memory is still 117.4 MB. Free memory was 31.0 MB in the beginning and 54.7 MB in the end (delta: -23.8 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:26,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 58.7 MB. Free memory is still 39.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 785.68 ms. Allocated memory was 58.7 MB in the beginning and 79.7 MB in the end (delta: 21.0 MB). Free memory was 34.7 MB in the beginning and 58.7 MB in the end (delta: -24.0 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 127.27 ms. Allocated memory is still 79.7 MB. Free memory was 58.7 MB in the beginning and 53.4 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 101.29 ms. Allocated memory is still 79.7 MB. Free memory was 53.4 MB in the beginning and 48.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3243.90 ms. Allocated memory is still 79.7 MB. Free memory was 48.9 MB in the beginning and 35.0 MB in the end (delta: 13.9 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 95843.28 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 34.5 MB in the beginning and 31.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. * Witness Printer took 152.30 ms. Allocated memory is still 117.4 MB. Free memory was 31.0 MB in the beginning and 54.7 MB in the end (delta: -23.8 MB). Peak memory consumption was 7.6 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: 92]: 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, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 95739.3ms, OverallIterations: 6, TraceHistogramMax: 3, EmptinessCheckTime: 50.5ms, AutomataDifference: 32595.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 845.1ms, InitialAbstractionConstructionTime: 20.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 423 SDtfs, 1320 SDslu, 61 SDs, 0 SdLazy, 4038 SolverSat, 806 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27858.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2654 GetRequests, 2618 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2172.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1255occurred in iteration=3, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 282.2ms AutomataMinimizationTime, 6 MinimizatonAttempts, 1529 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 32 NumberOfFragments, 123 HoareAnnotationTreeSize, 3 FomulaSimplifications, 632 FormulaSimplificationTreeSizeReduction, 212.5ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 304 FormulaSimplificationTreeSizeReductionInter, 624.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 175.3ms SsaConstructionTime, 611.6ms SatisfiabilityAnalysisTime, 55141.0ms InterpolantComputationTime, 1336 NumberOfCodeBlocks, 1336 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2654 ConstructedInterpolants, 0 QuantifiedInterpolants, 18896 SizeOfPredicates, 19 NumberOfNonLiveVariables, 1798 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 1031/1356 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (((((14bv32 == a4 && 0bv32 == a12) && !~bvsle32(a1, 4294967283bv32)) || ((a19 == 9bv32 && 14bv32 == a4) && 0bv32 == a12)) || (((!(8bv32 == a19) && 14bv32 == a4) && 0bv32 == a12) && 0bv32 == a10)) || (((14bv32 == a4 && 0bv32 == a12) && !(1bv32 == a10)) && !(0bv32 == a10))) || ((14bv32 == a4 && 0bv32 == a12) && 10bv32 == a19) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((14bv32 == a4 && 0bv32 == a12) && !~bvsle32(a1, 4294967283bv32)) || ((a19 == 9bv32 && 14bv32 == a4) && 0bv32 == a12)) || (((!(8bv32 == a19) && 14bv32 == a4) && 0bv32 == a12) && 0bv32 == a10)) || (((14bv32 == a4 && 0bv32 == a12) && !(1bv32 == a10)) && !(0bv32 == a10))) || ((14bv32 == a4 && 0bv32 == a12) && 10bv32 == a19) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 07:24:26,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a66da5-d8ca-4a3c-955c-20c776993d54/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...