./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE --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 11dad238eb84914335efd29047a947def7a0694fdab4be8f7a4064bc8cfe8e52 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE --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 11dad238eb84914335efd29047a947def7a0694fdab4be8f7a4064bc8cfe8e52 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:14:41,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:14:41,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:14:41,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:14:41,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:14:41,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:14:41,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:14:41,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:14:41,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:14:41,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:14:41,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:14:41,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:14:41,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:14:41,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:14:41,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:14:41,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:14:41,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:14:41,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:14:41,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:14:41,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:14:41,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:14:41,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:14:41,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:14:41,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:14:41,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:14:41,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:14:41,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:14:41,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:14:41,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:14:41,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:14:41,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:14:41,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:14:41,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:14:41,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:14:41,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:14:41,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:14:41,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:14:41,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:14:41,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:14:41,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:14:41,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:14:41,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:14:41,270 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:14:41,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:14:41,272 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:14:41,272 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:14:41,272 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:14:41,273 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:14:41,273 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:14:41,273 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:14:41,273 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:14:41,274 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:14:41,280 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:14:41,281 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:14:41,281 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:14:41,281 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:14:41,282 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:14:41,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:14:41,283 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:14:41,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:14:41,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:14:41,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:14:41,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:14:41,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:14:41,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:14:41,284 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:14:41,285 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:14:41,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:14:41,285 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:14:41,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:14:41,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:14:41,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:14:41,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:14:41,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:14:41,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:14:41,288 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:14:41,288 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:14:41,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:14:41,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:14:41,289 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:14:41,289 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:14:41,290 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_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11dad238eb84914335efd29047a947def7a0694fdab4be8f7a4064bc8cfe8e52 [2021-10-24 10:14:41,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:14:41,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:14:41,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:14:41,626 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:14:41,627 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:14:41,628 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2021-10-24 10:14:41,706 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/data/8a4a11b45/6dce498d998c4fada904fa7fd06e042c/FLAG9a3f14a4d [2021-10-24 10:14:42,265 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:14:42,266 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2021-10-24 10:14:42,281 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/data/8a4a11b45/6dce498d998c4fada904fa7fd06e042c/FLAG9a3f14a4d [2021-10-24 10:14:42,568 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/data/8a4a11b45/6dce498d998c4fada904fa7fd06e042c [2021-10-24 10:14:42,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:14:42,575 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:14:42,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:14:42,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:14:42,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:14:42,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:14:42" (1/1) ... [2021-10-24 10:14:42,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a5b3b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:42, skipping insertion in model container [2021-10-24 10:14:42,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:14:42" (1/1) ... [2021-10-24 10:14:42,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:14:42,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:14:43,034 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_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c[37270,37283] [2021-10-24 10:14:43,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:14:43,064 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:14:43,158 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_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c[37270,37283] [2021-10-24 10:14:43,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:14:43,177 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:14:43,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:43 WrapperNode [2021-10-24 10:14:43,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:14:43,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:14:43,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:14:43,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:14:43,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:43" (1/1) ... [2021-10-24 10:14:43,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:43" (1/1) ... [2021-10-24 10:14:43,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:14:43,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:14:43,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:14:43,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:14:43,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:43" (1/1) ... [2021-10-24 10:14:43,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:43" (1/1) ... [2021-10-24 10:14:43,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:43" (1/1) ... [2021-10-24 10:14:43,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:43" (1/1) ... [2021-10-24 10:14:43,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:43" (1/1) ... [2021-10-24 10:14:43,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:43" (1/1) ... [2021-10-24 10:14:43,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:43" (1/1) ... [2021-10-24 10:14:43,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:14:43,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:14:43,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:14:43,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:14:43,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:43" (1/1) ... [2021-10-24 10:14:43,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:14:43,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:14:43,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:14:43,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:14:43,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 10:14:43,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:14:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:14:43,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:14:43,622 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:14:44,228 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-10-24 10:14:44,228 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-10-24 10:14:45,002 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:14:45,002 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-24 10:14:45,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:14:45 BoogieIcfgContainer [2021-10-24 10:14:45,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:14:45,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:14:45,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:14:45,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:14:45,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:14:42" (1/3) ... [2021-10-24 10:14:45,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ed263f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:14:45, skipping insertion in model container [2021-10-24 10:14:45,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:43" (2/3) ... [2021-10-24 10:14:45,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ed263f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:14:45, skipping insertion in model container [2021-10-24 10:14:45,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:14:45" (3/3) ... [2021-10-24 10:14:45,020 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.BV.c.cil-1a.c [2021-10-24 10:14:45,033 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:14:45,033 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 10:14:45,117 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:14:45,125 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, mAutomataTypeConcurrency=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 [2021-10-24 10:14:45,126 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 10:14:45,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 82 states have (on average 1.7682926829268293) internal successors, (145), 83 states have internal predecessors, (145), 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) [2021-10-24 10:14:45,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 10:14:45,159 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:14:45,160 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:14:45,166 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:14:45,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:14:45,174 INFO L82 PathProgramCache]: Analyzing trace with hash 70311567, now seen corresponding path program 1 times [2021-10-24 10:14:45,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:14:45,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889368298] [2021-10-24 10:14:45,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:14:45,191 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:14:45,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:14:45,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:14:45,455 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:14:45,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889368298] [2021-10-24 10:14:45,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889368298] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:14:45,457 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:14:45,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:14:45,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991281487] [2021-10-24 10:14:45,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:14:45,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:14:45,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:14:45,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:14:45,488 INFO L87 Difference]: Start difference. First operand has 84 states, 82 states have (on average 1.7682926829268293) internal successors, (145), 83 states have internal predecessors, (145), 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 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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) [2021-10-24 10:14:45,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:14:45,706 INFO L93 Difference]: Finished difference Result 169 states and 293 transitions. [2021-10-24 10:14:45,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:14:45,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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 19 [2021-10-24 10:14:45,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:14:45,720 INFO L225 Difference]: With dead ends: 169 [2021-10-24 10:14:45,721 INFO L226 Difference]: Without dead ends: 83 [2021-10-24 10:14:45,724 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:14:45,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-10-24 10:14:45,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-10-24 10:14:45,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.4634146341463414) internal successors, (120), 82 states have internal predecessors, (120), 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) [2021-10-24 10:14:45,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 120 transitions. [2021-10-24 10:14:45,796 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 120 transitions. Word has length 19 [2021-10-24 10:14:45,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:14:45,797 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 120 transitions. [2021-10-24 10:14:45,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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) [2021-10-24 10:14:45,798 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 120 transitions. [2021-10-24 10:14:45,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 10:14:45,800 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:14:45,800 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:14:45,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 10:14:45,801 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:14:45,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:14:45,802 INFO L82 PathProgramCache]: Analyzing trace with hash 205833436, now seen corresponding path program 1 times [2021-10-24 10:14:45,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:14:45,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751166201] [2021-10-24 10:14:45,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:14:45,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:14:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:14:45,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:14:45,899 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:14:45,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751166201] [2021-10-24 10:14:45,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751166201] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:14:45,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:14:45,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:14:45,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101922162] [2021-10-24 10:14:45,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:14:45,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:14:45,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:14:45,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:14:45,904 INFO L87 Difference]: Start difference. First operand 83 states and 120 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-10-24 10:14:46,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:14:46,104 INFO L93 Difference]: Finished difference Result 178 states and 261 transitions. [2021-10-24 10:14:46,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:14:46,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2021-10-24 10:14:46,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:14:46,107 INFO L225 Difference]: With dead ends: 178 [2021-10-24 10:14:46,107 INFO L226 Difference]: Without dead ends: 98 [2021-10-24 10:14:46,108 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:14:46,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-10-24 10:14:46,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2021-10-24 10:14:46,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.431578947368421) internal successors, (136), 95 states have internal predecessors, (136), 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) [2021-10-24 10:14:46,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 136 transitions. [2021-10-24 10:14:46,123 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 136 transitions. Word has length 28 [2021-10-24 10:14:46,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:14:46,124 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 136 transitions. [2021-10-24 10:14:46,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-10-24 10:14:46,125 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 136 transitions. [2021-10-24 10:14:46,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-24 10:14:46,127 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:14:46,127 INFO L512 BasicCegarLoop]: trace histogram [3, 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] [2021-10-24 10:14:46,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 10:14:46,128 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:14:46,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:14:46,129 INFO L82 PathProgramCache]: Analyzing trace with hash -686300563, now seen corresponding path program 1 times [2021-10-24 10:14:46,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:14:46,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91642311] [2021-10-24 10:14:46,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:14:46,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:14:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:14:46,237 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-24 10:14:46,238 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:14:46,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91642311] [2021-10-24 10:14:46,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91642311] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:14:46,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:14:46,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:14:46,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833094099] [2021-10-24 10:14:46,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:14:46,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:14:46,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:14:46,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:14:46,242 INFO L87 Difference]: Start difference. First operand 96 states and 136 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-10-24 10:14:46,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:14:46,447 INFO L93 Difference]: Finished difference Result 206 states and 297 transitions. [2021-10-24 10:14:46,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:14:46,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 39 [2021-10-24 10:14:46,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:14:46,450 INFO L225 Difference]: With dead ends: 206 [2021-10-24 10:14:46,450 INFO L226 Difference]: Without dead ends: 113 [2021-10-24 10:14:46,451 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:14:46,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-24 10:14:46,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2021-10-24 10:14:46,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4) internal successors, (154), 110 states have internal predecessors, (154), 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) [2021-10-24 10:14:46,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 154 transitions. [2021-10-24 10:14:46,474 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 154 transitions. Word has length 39 [2021-10-24 10:14:46,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:14:46,476 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 154 transitions. [2021-10-24 10:14:46,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-10-24 10:14:46,477 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 154 transitions. [2021-10-24 10:14:46,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-24 10:14:46,484 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:14:46,484 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-24 10:14:46,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-24 10:14:46,485 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:14:46,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:14:46,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1967255269, now seen corresponding path program 1 times [2021-10-24 10:14:46,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:14:46,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220745046] [2021-10-24 10:14:46,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:14:46,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:14:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:14:46,660 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-24 10:14:46,662 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:14:46,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220745046] [2021-10-24 10:14:46,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220745046] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 10:14:46,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002967897] [2021-10-24 10:14:46,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:14:46,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:14:46,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:14:46,671 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:14:46,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-24 10:14:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:14:46,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:14:46,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:14:47,204 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-24 10:14:47,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:14:47,478 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-24 10:14:47,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002967897] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:14:47,478 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-24 10:14:47,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [4] total 9 [2021-10-24 10:14:47,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573462755] [2021-10-24 10:14:47,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:14:47,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:14:47,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:14:47,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:14:47,481 INFO L87 Difference]: Start difference. First operand 111 states and 154 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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) [2021-10-24 10:14:47,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:14:47,874 INFO L93 Difference]: Finished difference Result 312 states and 467 transitions. [2021-10-24 10:14:47,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:14:47,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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 52 [2021-10-24 10:14:47,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:14:47,877 INFO L225 Difference]: With dead ends: 312 [2021-10-24 10:14:47,877 INFO L226 Difference]: Without dead ends: 203 [2021-10-24 10:14:47,878 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 43.6ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:14:47,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-10-24 10:14:47,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 186. [2021-10-24 10:14:47,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.3783783783783783) internal successors, (255), 185 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:47,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 255 transitions. [2021-10-24 10:14:47,894 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 255 transitions. Word has length 52 [2021-10-24 10:14:47,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:14:47,895 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 255 transitions. [2021-10-24 10:14:47,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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) [2021-10-24 10:14:47,895 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 255 transitions. [2021-10-24 10:14:47,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-24 10:14:47,897 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:14:47,897 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:14:47,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:14:48,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:14:48,114 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:14:48,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:14:48,115 INFO L82 PathProgramCache]: Analyzing trace with hash -672239485, now seen corresponding path program 1 times [2021-10-24 10:14:48,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:14:48,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126874104] [2021-10-24 10:14:48,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:14:48,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:14:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:14:48,263 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-24 10:14:48,263 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:14:48,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126874104] [2021-10-24 10:14:48,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126874104] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:14:48,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:14:48,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:14:48,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367747250] [2021-10-24 10:14:48,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:14:48,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:14:48,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:14:48,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:14:48,270 INFO L87 Difference]: Start difference. First operand 186 states and 255 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-10-24 10:14:48,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:14:48,376 INFO L93 Difference]: Finished difference Result 390 states and 543 transitions. [2021-10-24 10:14:48,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:14:48,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 67 [2021-10-24 10:14:48,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:14:48,379 INFO L225 Difference]: With dead ends: 390 [2021-10-24 10:14:48,379 INFO L226 Difference]: Without dead ends: 207 [2021-10-24 10:14:48,380 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:14:48,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-10-24 10:14:48,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 205. [2021-10-24 10:14:48,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.357843137254902) internal successors, (277), 204 states have internal predecessors, (277), 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) [2021-10-24 10:14:48,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2021-10-24 10:14:48,395 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 67 [2021-10-24 10:14:48,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:14:48,395 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2021-10-24 10:14:48,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-10-24 10:14:48,396 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2021-10-24 10:14:48,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-10-24 10:14:48,398 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:14:48,398 INFO L512 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:14:48,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-24 10:14:48,399 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:14:48,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:14:48,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1956777873, now seen corresponding path program 1 times [2021-10-24 10:14:48,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:14:48,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525854301] [2021-10-24 10:14:48,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:14:48,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:14:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:14:48,593 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-24 10:14:48,593 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:14:48,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525854301] [2021-10-24 10:14:48,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525854301] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 10:14:48,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842099489] [2021-10-24 10:14:48,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:14:48,594 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:14:48,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:14:48,598 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:14:48,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-24 10:14:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:14:48,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 10:14:48,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:14:49,078 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-10-24 10:14:49,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:14:49,495 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-10-24 10:14:49,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842099489] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:14:49,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1435151979] [2021-10-24 10:14:49,533 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2021-10-24 10:14:49,534 INFO L166 IcfgInterpreter]: Building call graph [2021-10-24 10:14:49,541 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-24 10:14:49,549 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-24 10:14:49,550 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-24 10:14:49,752 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:49,762 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:14:49,764 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:49,765 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-24 10:14:49,766 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:14:49,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:49,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-24 10:14:49,783 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 323 [2021-10-24 10:14:49,826 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_17|], 21=[|v_#valid_18|]} [2021-10-24 10:14:49,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:49,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:49,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:49,884 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 [2021-10-24 10:14:49,885 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:49,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-24 10:14:49,887 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:49,888 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-24 10:14:49,889 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:14:49,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:49,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:49,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:49,930 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 [2021-10-24 10:14:49,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:49,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-24 10:14:49,933 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:49,934 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-24 10:14:49,935 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:14:49,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:49,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:49,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:49,974 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 [2021-10-24 10:14:49,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:49,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-24 10:14:49,976 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:49,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-24 10:14:49,980 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:14:49,983 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:50,135 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:50,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-24 10:14:50,206 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:50,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 10:14:50,211 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:50,211 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 10:14:50,212 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-24 10:14:50,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-24 10:14:50,274 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:50,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 10:14:50,278 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:50,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 10:14:50,279 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-10-24 10:14:50,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:14:50,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-24 10:14:50,326 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:50,331 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 10:14:50,332 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:50,333 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 10:14:50,333 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-10-24 10:14:50,336 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:50,481 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:50,578 INFO L180 QuantifierPusher]: treesize reduction 18, result has 97.8 percent of original size [2021-10-24 10:14:50,612 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 807 [2021-10-24 10:14:50,620 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-10-24 10:14:50,625 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 2 variables, input treesize:900, output treesize:807 [2021-10-24 10:14:50,671 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:50,741 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 808 [2021-10-24 10:14:50,787 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:50,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 836 [2021-10-24 10:14:50,874 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:50,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 834 [2021-10-24 10:14:50,949 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:50,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 834 [2021-10-24 10:14:51,041 INFO L180 QuantifierPusher]: treesize reduction 20, result has 97.8 percent of original size [2021-10-24 10:14:51,053 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:14:51,077 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:51,104 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 774 [2021-10-24 10:14:51,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 830 [2021-10-24 10:14:51,217 INFO L180 QuantifierPusher]: treesize reduction 6, result has 99.3 percent of original size [2021-10-24 10:14:51,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 828 [2021-10-24 10:14:51,296 INFO L180 QuantifierPusher]: treesize reduction 848, result has 0.1 percent of original size [2021-10-24 10:14:51,297 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-24 10:14:51,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:51,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:51,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:51,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:51,456 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:51,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:51,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:51,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:51,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:51,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:51,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:51,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:51,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:51,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:51,825 INFO L180 QuantifierPusher]: treesize reduction 66, result has 77.9 percent of original size [2021-10-24 10:14:51,834 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-10-24 10:14:51,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:51,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-10-24 10:14:51,899 INFO L180 QuantifierPusher]: treesize reduction 47, result has 84.5 percent of original size [2021-10-24 10:14:51,919 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-10-24 10:14:51,934 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.6 percent of original size [2021-10-24 10:14:51,945 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 241 [2021-10-24 10:14:51,968 INFO L180 QuantifierPusher]: treesize reduction 39, result has 86.0 percent of original size [2021-10-24 10:14:51,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 236 [2021-10-24 10:14:51,990 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:52,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-10-24 10:14:52,002 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,065 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,072 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,080 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,152 INFO L180 QuantifierPusher]: treesize reduction 31, result has 89.2 percent of original size [2021-10-24 10:14:52,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-10-24 10:14:52,177 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.7 percent of original size [2021-10-24 10:14:52,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 251 [2021-10-24 10:14:52,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,256 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,260 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,331 INFO L180 QuantifierPusher]: treesize reduction 23, result has 92.2 percent of original size [2021-10-24 10:14:52,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 250 [2021-10-24 10:14:52,368 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.7 percent of original size [2021-10-24 10:14:52,378 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-10-24 10:14:52,380 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,457 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,463 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,466 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,478 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,509 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,553 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.8 percent of original size [2021-10-24 10:14:52,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-10-24 10:14:52,568 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:52,575 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-10-24 10:14:52,583 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:52,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-10-24 10:14:52,600 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:52,609 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 247 [2021-10-24 10:14:52,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:52,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,048 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,051 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,099 INFO L180 QuantifierPusher]: treesize reduction 60, result has 79.5 percent of original size [2021-10-24 10:14:53,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-10-24 10:14:53,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:53,119 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-10-24 10:14:53,148 INFO L180 QuantifierPusher]: treesize reduction 47, result has 84.5 percent of original size [2021-10-24 10:14:53,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-10-24 10:14:53,170 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.6 percent of original size [2021-10-24 10:14:53,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 241 [2021-10-24 10:14:53,189 INFO L180 QuantifierPusher]: treesize reduction 39, result has 86.0 percent of original size [2021-10-24 10:14:53,196 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 236 [2021-10-24 10:14:53,203 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:53,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-10-24 10:14:53,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,260 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,331 INFO L180 QuantifierPusher]: treesize reduction 31, result has 89.2 percent of original size [2021-10-24 10:14:53,342 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-10-24 10:14:53,353 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.7 percent of original size [2021-10-24 10:14:53,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 251 [2021-10-24 10:14:53,364 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,420 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,423 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,488 INFO L180 QuantifierPusher]: treesize reduction 23, result has 92.2 percent of original size [2021-10-24 10:14:53,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 250 [2021-10-24 10:14:53,512 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.7 percent of original size [2021-10-24 10:14:53,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-10-24 10:14:53,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,569 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,571 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,572 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,617 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,649 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.8 percent of original size [2021-10-24 10:14:53,657 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-10-24 10:14:53,663 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:53,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-10-24 10:14:53,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:53,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-10-24 10:14:53,692 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:53,700 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 247 [2021-10-24 10:14:53,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,853 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:53,959 INFO L180 QuantifierPusher]: treesize reduction 60, result has 79.5 percent of original size [2021-10-24 10:14:53,965 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-10-24 10:14:53,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,038 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,043 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,044 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,051 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,087 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,216 INFO L180 QuantifierPusher]: treesize reduction 45, result has 83.5 percent of original size [2021-10-24 10:14:54,222 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-10-24 10:14:54,245 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:54,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 247 [2021-10-24 10:14:54,292 INFO L180 QuantifierPusher]: treesize reduction 73, result has 77.0 percent of original size [2021-10-24 10:14:54,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-10-24 10:14:54,315 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.6 percent of original size [2021-10-24 10:14:54,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-10-24 10:14:54,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,383 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,384 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,386 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,387 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,388 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,395 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,453 INFO L180 QuantifierPusher]: treesize reduction 81, result has 73.8 percent of original size [2021-10-24 10:14:54,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-10-24 10:14:54,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:14:54,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-10-24 10:14:54,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,568 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,742 INFO L180 QuantifierPusher]: treesize reduction 97, result has 70.2 percent of original size [2021-10-24 10:14:54,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-10-24 10:14:54,774 INFO L180 QuantifierPusher]: treesize reduction 89, result has 73.3 percent of original size [2021-10-24 10:14:54,784 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-10-24 10:14:54,796 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.5 percent of original size [2021-10-24 10:14:54,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 232 [2021-10-24 10:14:54,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,880 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:54,942 INFO L180 QuantifierPusher]: treesize reduction 65, result has 80.0 percent of original size [2021-10-24 10:14:54,954 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-10-24 10:14:54,965 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.6 percent of original size [2021-10-24 10:14:54,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-10-24 10:14:54,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:55,016 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:55,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:55,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:55,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:55,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:55,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:55,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:14:55,069 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-24 10:15:10,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-24 10:15:10,418 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-24 10:15:10,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 3] total 7 [2021-10-24 10:15:10,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283804979] [2021-10-24 10:15:10,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:15:10,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:15:10,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:15:10,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1338, Unknown=0, NotChecked=0, Total=1560 [2021-10-24 10:15:10,421 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand has 8 states, 8 states have (on average 15.875) internal successors, (127), 7 states have internal predecessors, (127), 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) [2021-10-24 10:15:10,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:10,494 INFO L93 Difference]: Finished difference Result 649 states and 873 transitions. [2021-10-24 10:15:10,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 10:15:10,495 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 7 states have internal predecessors, (127), 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 85 [2021-10-24 10:15:10,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:10,500 INFO L225 Difference]: With dead ends: 649 [2021-10-24 10:15:10,500 INFO L226 Difference]: Without dead ends: 647 [2021-10-24 10:15:10,502 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 210 SyntacticMatches, 10 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 15373.2ms TimeCoverageRelationStatistics Valid=222, Invalid=1338, Unknown=0, NotChecked=0, Total=1560 [2021-10-24 10:15:10,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2021-10-24 10:15:10,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 566. [2021-10-24 10:15:10,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 565 states have (on average 1.3716814159292035) internal successors, (775), 565 states have internal predecessors, (775), 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) [2021-10-24 10:15:10,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 775 transitions. [2021-10-24 10:15:10,528 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 775 transitions. Word has length 85 [2021-10-24 10:15:10,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:10,529 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 775 transitions. [2021-10-24 10:15:10,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 7 states have internal predecessors, (127), 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) [2021-10-24 10:15:10,529 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 775 transitions. [2021-10-24 10:15:10,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-10-24 10:15:10,534 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:10,534 INFO L512 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 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] [2021-10-24 10:15:10,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:10,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:15:10,754 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:10,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:10,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1110870099, now seen corresponding path program 1 times [2021-10-24 10:15:10,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:15:10,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500182156] [2021-10-24 10:15:10,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:10,755 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:15:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:10,881 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-10-24 10:15:10,881 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:15:10,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500182156] [2021-10-24 10:15:10,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500182156] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:10,882 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:10,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:15:10,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69256322] [2021-10-24 10:15:10,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:15:10,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:15:10,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:15:10,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:10,885 INFO L87 Difference]: Start difference. First operand 566 states and 775 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2021-10-24 10:15:11,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:11,063 INFO L93 Difference]: Finished difference Result 1260 states and 1782 transitions. [2021-10-24 10:15:11,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:15:11,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 143 [2021-10-24 10:15:11,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:11,071 INFO L225 Difference]: With dead ends: 1260 [2021-10-24 10:15:11,071 INFO L226 Difference]: Without dead ends: 694 [2021-10-24 10:15:11,072 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:11,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2021-10-24 10:15:11,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 629. [2021-10-24 10:15:11,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 628 states have (on average 1.3678343949044587) internal successors, (859), 628 states have internal predecessors, (859), 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) [2021-10-24 10:15:11,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 859 transitions. [2021-10-24 10:15:11,097 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 859 transitions. Word has length 143 [2021-10-24 10:15:11,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:11,098 INFO L470 AbstractCegarLoop]: Abstraction has 629 states and 859 transitions. [2021-10-24 10:15:11,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2021-10-24 10:15:11,099 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 859 transitions. [2021-10-24 10:15:11,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-10-24 10:15:11,103 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:11,103 INFO L512 BasicCegarLoop]: trace histogram [11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 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] [2021-10-24 10:15:11,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-10-24 10:15:11,104 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:11,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:11,104 INFO L82 PathProgramCache]: Analyzing trace with hash 990684674, now seen corresponding path program 2 times [2021-10-24 10:15:11,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:15:11,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968019372] [2021-10-24 10:15:11,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:11,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:15:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:11,192 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-10-24 10:15:11,192 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:15:11,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968019372] [2021-10-24 10:15:11,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968019372] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:11,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:11,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:15:11,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170734104] [2021-10-24 10:15:11,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:15:11,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:15:11,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:15:11,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:11,196 INFO L87 Difference]: Start difference. First operand 629 states and 859 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2021-10-24 10:15:11,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:11,352 INFO L93 Difference]: Finished difference Result 1447 states and 2059 transitions. [2021-10-24 10:15:11,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:15:11,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 152 [2021-10-24 10:15:11,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:11,359 INFO L225 Difference]: With dead ends: 1447 [2021-10-24 10:15:11,359 INFO L226 Difference]: Without dead ends: 770 [2021-10-24 10:15:11,361 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:11,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2021-10-24 10:15:11,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 743. [2021-10-24 10:15:11,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 742 states have (on average 1.3517520215633423) internal successors, (1003), 742 states have internal predecessors, (1003), 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) [2021-10-24 10:15:11,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1003 transitions. [2021-10-24 10:15:11,393 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1003 transitions. Word has length 152 [2021-10-24 10:15:11,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:11,394 INFO L470 AbstractCegarLoop]: Abstraction has 743 states and 1003 transitions. [2021-10-24 10:15:11,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2021-10-24 10:15:11,394 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1003 transitions. [2021-10-24 10:15:11,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-10-24 10:15:11,398 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:11,398 INFO L512 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2021-10-24 10:15:11,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-10-24 10:15:11,399 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:11,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:11,399 INFO L82 PathProgramCache]: Analyzing trace with hash -802224645, now seen corresponding path program 1 times [2021-10-24 10:15:11,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:15:11,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787271170] [2021-10-24 10:15:11,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:11,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:15:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:11,516 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-10-24 10:15:11,516 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:15:11,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787271170] [2021-10-24 10:15:11,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787271170] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:11,517 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:11,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:15:11,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156564388] [2021-10-24 10:15:11,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:15:11,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:15:11,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:15:11,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:11,519 INFO L87 Difference]: Start difference. First operand 743 states and 1003 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2021-10-24 10:15:11,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:11,563 INFO L93 Difference]: Finished difference Result 1225 states and 1656 transitions. [2021-10-24 10:15:11,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:15:11,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 163 [2021-10-24 10:15:11,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:11,568 INFO L225 Difference]: With dead ends: 1225 [2021-10-24 10:15:11,569 INFO L226 Difference]: Without dead ends: 743 [2021-10-24 10:15:11,570 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:11,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2021-10-24 10:15:11,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 743. [2021-10-24 10:15:11,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 742 states have (on average 1.349056603773585) internal successors, (1001), 742 states have internal predecessors, (1001), 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) [2021-10-24 10:15:11,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1001 transitions. [2021-10-24 10:15:11,598 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1001 transitions. Word has length 163 [2021-10-24 10:15:11,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:11,598 INFO L470 AbstractCegarLoop]: Abstraction has 743 states and 1001 transitions. [2021-10-24 10:15:11,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2021-10-24 10:15:11,599 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1001 transitions. [2021-10-24 10:15:11,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-10-24 10:15:11,601 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:11,601 INFO L512 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:15:11,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-10-24 10:15:11,602 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:11,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:11,602 INFO L82 PathProgramCache]: Analyzing trace with hash 610286614, now seen corresponding path program 1 times [2021-10-24 10:15:11,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:15:11,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119186130] [2021-10-24 10:15:11,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:11,603 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:15:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:15:11,671 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:15:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:15:11,839 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-24 10:15:11,839 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:15:11,840 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:15:11,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-10-24 10:15:11,848 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:15:11,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:15:11 BoogieIcfgContainer [2021-10-24 10:15:11,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:15:11,969 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:15:11,969 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:15:11,969 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:15:11,970 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:14:45" (3/4) ... [2021-10-24 10:15:11,976 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 10:15:11,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:15:11,977 INFO L168 Benchmark]: Toolchain (without parser) took 29402.38 ms. Allocated memory was 111.1 MB in the beginning and 262.1 MB in the end (delta: 151.0 MB). Free memory was 69.9 MB in the beginning and 201.3 MB in the end (delta: -131.4 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:15:11,978 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 111.1 MB. Free memory is still 86.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:15:11,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 597.46 ms. Allocated memory is still 111.1 MB. Free memory was 69.7 MB in the beginning and 81.2 MB in the end (delta: -11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:15:11,978 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.88 ms. Allocated memory is still 111.1 MB. Free memory was 81.2 MB in the beginning and 78.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:15:11,979 INFO L168 Benchmark]: Boogie Preprocessor took 87.25 ms. Allocated memory is still 111.1 MB. Free memory was 78.6 MB in the beginning and 76.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:15:11,979 INFO L168 Benchmark]: RCFGBuilder took 1663.04 ms. Allocated memory was 111.1 MB in the beginning and 148.9 MB in the end (delta: 37.7 MB). Free memory was 76.6 MB in the beginning and 106.0 MB in the end (delta: -29.4 MB). Peak memory consumption was 46.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:15:11,980 INFO L168 Benchmark]: TraceAbstraction took 26959.36 ms. Allocated memory was 148.9 MB in the beginning and 262.1 MB in the end (delta: 113.2 MB). Free memory was 106.0 MB in the beginning and 201.3 MB in the end (delta: -95.3 MB). Peak memory consumption was 150.0 MB. Max. memory is 16.1 GB. [2021-10-24 10:15:11,981 INFO L168 Benchmark]: Witness Printer took 7.77 ms. Allocated memory is still 262.1 MB. Free memory is still 201.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:15:11,987 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 111.1 MB. Free memory is still 86.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 597.46 ms. Allocated memory is still 111.1 MB. Free memory was 69.7 MB in the beginning and 81.2 MB in the end (delta: -11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.88 ms. Allocated memory is still 111.1 MB. Free memory was 81.2 MB in the beginning and 78.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 87.25 ms. Allocated memory is still 111.1 MB. Free memory was 78.6 MB in the beginning and 76.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1663.04 ms. Allocated memory was 111.1 MB in the beginning and 148.9 MB in the end (delta: 37.7 MB). Free memory was 76.6 MB in the beginning and 106.0 MB in the end (delta: -29.4 MB). Peak memory consumption was 46.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 26959.36 ms. Allocated memory was 148.9 MB in the beginning and 262.1 MB in the end (delta: 113.2 MB). Free memory was 106.0 MB in the beginning and 201.3 MB in the end (delta: -95.3 MB). Peak memory consumption was 150.0 MB. Max. memory is 16.1 GB. * Witness Printer took 7.77 ms. Allocated memory is still 262.1 MB. Free memory is still 201.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseXor at line 358. Possible FailurePath: [L619] int __retres1 ; [L11] int s__info_callback = __VERIFIER_nondet_int(); [L12] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] unsigned int s__version = __VERIFIER_nondet_uint(); [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int(); [L20] int s__wbio = __VERIFIER_nondet_int(); [L21] int s__hit = __VERIFIER_nondet_int(); [L22] int s__rwstate ; [L23] int s__init_buf___0 ; [L24] int s__debug = __VERIFIER_nondet_int(); [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L27] unsigned int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_uint(); [L28] unsigned int s__ctx__stats__sess_connect ; [L29] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L30] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L54] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L55] int tmp___3 = __VERIFIER_nondet_int(); [L56] int tmp___4 = __VERIFIER_nondet_int(); [L57] int tmp___5 = __VERIFIER_nondet_int(); [L58] int tmp___6 = __VERIFIER_nondet_int(); [L59] int tmp___7 = __VERIFIER_nondet_int(); [L60] int tmp___8 = __VERIFIER_nondet_int(); [L61] int tmp___9 = __VERIFIER_nondet_int(); [L62] int blastFlag ; [L63] int ag_X ; [L64] int ag_Y ; [L65] int __retres59 ; [L68] s__state = 12292 [L69] blastFlag = 0 [L70] tmp = __VERIFIER_nondet_int() [L71] cb = 0 [L72] ret = -1 [L73] skip = 0 [L74] tmp___0 = 0 [L75] COND FALSE !(s__info_callback != 0) [L78] COND FALSE !(s__ctx__info_callback != 0) [L84] s__in_handshake = s__in_handshake + 1 [L85] COND TRUE tmp___1 - 12288 [L86] COND FALSE !(tmp___2 - 16384) [L95] COND TRUE 1 [L97] state = s__state [L98] COND TRUE s__state == 12292 [L201] s__new_session = 1 [L202] s__state = 4096 [L203] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L208] s__server = 0 [L209] COND FALSE !(cb != 0) [L214] COND FALSE !(s__version - 65280 != 768) [L220] s__type = 4096 [L221] COND FALSE !(s__init_buf___0 == 0) [L239] COND FALSE !(! tmp___4) [L245] COND FALSE !(! tmp___5) [L251] s__state = 4368 [L252] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L253] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND TRUE s__state == 4368 [L257] s__shutdown = 0 [L258] ret = __VERIFIER_nondet_int() [L259] COND TRUE blastFlag == 0 [L260] blastFlag = 1 [L268] COND FALSE !(ret <= 0) [L273] s__state = 4384 [L274] s__init_num = 0 [L275] COND TRUE s__bbio != s__wbio [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND TRUE s__state == 4384 [L283] ret = __VERIFIER_nondet_int() [L284] COND TRUE blastFlag == 1 [L285] blastFlag = 2 [L289] COND FALSE !(ret <= 0) [L294] COND FALSE !(\read(s__hit)) [L297] s__state = 4400 [L299] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND TRUE s__state == 4400 [L303] COND FALSE !((unsigned long )s__s3__tmp__new_cipher__algorithms - 256UL) [L306] ret = __VERIFIER_nondet_int() [L307] COND TRUE blastFlag == 2 [L308] blastFlag = 3 [L312] COND FALSE !(ret <= 0) [L318] ag_Y = 61087 [L319] s__state = 4416 [L320] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND FALSE !(s__state == 4400) [L128] COND FALSE !(s__state == 4401) [L131] COND TRUE s__state == 4416 [L324] ret = __VERIFIER_nondet_int() [L325] COND TRUE blastFlag == 3 [L326] blastFlag = 4 [L330] COND FALSE !(ret <= 0) [L335] s__state = 4432 [L336] ag_X = (unsigned short)65535 [L337] s__init_num = 0 [L338] COND FALSE !(! tmp___6) [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND FALSE !(s__state == 4400) [L128] COND FALSE !(s__state == 4401) [L131] COND FALSE !(s__state == 4416) [L134] COND FALSE !(s__state == 4417) [L137] COND TRUE s__state == 4432 [L347] ret = __VERIFIER_nondet_int() [L348] COND FALSE !(blastFlag == 5) [L353] COND FALSE !(ret <= 0) [L358] s__state = ag_X ^ ag_Y [L359] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND TRUE s__state == 4368 [L257] s__shutdown = 0 [L258] ret = __VERIFIER_nondet_int() [L259] COND FALSE !(blastFlag == 0) [L262] COND TRUE blastFlag == 4 [L263] blastFlag = 5 [L268] COND FALSE !(ret <= 0) [L273] s__state = 4384 [L274] s__init_num = 0 [L275] COND TRUE s__bbio != s__wbio [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND TRUE s__state == 4384 [L283] ret = __VERIFIER_nondet_int() [L284] COND FALSE !(blastFlag == 1) [L289] COND FALSE !(ret <= 0) [L294] COND FALSE !(\read(s__hit)) [L297] s__state = 4400 [L299] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND TRUE s__state == 4400 [L303] COND FALSE !((unsigned long )s__s3__tmp__new_cipher__algorithms - 256UL) [L306] ret = __VERIFIER_nondet_int() [L307] COND FALSE !(blastFlag == 2) [L312] COND FALSE !(ret <= 0) [L318] ag_Y = 61087 [L319] s__state = 4416 [L320] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND FALSE !(s__state == 4400) [L128] COND FALSE !(s__state == 4401) [L131] COND TRUE s__state == 4416 [L324] ret = __VERIFIER_nondet_int() [L325] COND FALSE !(blastFlag == 3) [L330] COND FALSE !(ret <= 0) [L335] s__state = 4432 [L336] ag_X = (unsigned short)65535 [L337] s__init_num = 0 [L338] COND FALSE !(! tmp___6) [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND FALSE !(s__state == 4400) [L128] COND FALSE !(s__state == 4401) [L131] COND FALSE !(s__state == 4416) [L134] COND FALSE !(s__state == 4417) [L137] COND TRUE s__state == 4432 [L347] ret = __VERIFIER_nondet_int() [L348] COND TRUE blastFlag == 5 [L610] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26732.1ms, OverallIterations: 10, TraceHistogramMax: 11, EmptinessCheckTime: 45.9ms, AutomataDifference: 1670.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1223 SDtfs, 711 SDslu, 1071 SDs, 0 SdLazy, 921 SolverSat, 186 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 945.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 384 GetRequests, 322 SyntacticMatches, 10 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 15438.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=743occurred in iteration=8, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 231.1ms AutomataMinimizationTime, 9 MinimizatonAttempts, 196 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 115.4ms SsaConstructionTime, 495.0ms SatisfiabilityAnalysisTime, 2165.7ms InterpolantComputationTime, 1049 NumberOfCodeBlocks, 1049 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1009 ConstructedInterpolants, 0 QuantifiedInterpolants, 2915 SizeOfPredicates, 1 NumberOfNonLiveVariables, 418 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 1708/1967 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-24 10:15:12,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/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-e943c26 [2021-10-24 10:15:14,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:15:14,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:15:14,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:15:14,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:15:14,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:15:14,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:15:14,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:15:14,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:15:14,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:15:14,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:15:14,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:15:14,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:15:14,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:15:14,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:15:14,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:15:14,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:15:14,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:15:14,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:15:14,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:15:14,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:15:14,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:15:14,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:15:14,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:15:14,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:15:14,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:15:14,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:15:14,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:15:14,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:15:14,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:15:14,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:15:14,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:15:14,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:15:14,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:15:14,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:15:14,922 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:15:14,923 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:15:14,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:15:14,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:15:14,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:15:14,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:15:14,928 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:15:14,984 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:15:14,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:15:14,987 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:15:14,987 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:15:14,987 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:15:14,988 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:15:14,988 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:15:14,988 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:15:14,988 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:15:14,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:15:14,992 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:15:14,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:15:14,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:15:14,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:15:14,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:15:14,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:15:14,994 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:15:14,994 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:15:14,994 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:15:14,994 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:15:14,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:15:14,995 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:15:14,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:15:14,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:15:14,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:15:14,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:15:14,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:15:14,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:15:14,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:15:14,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:15:14,998 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:15:14,998 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:15:14,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:15:14,999 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:15:14,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:15:14,999 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_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11dad238eb84914335efd29047a947def7a0694fdab4be8f7a4064bc8cfe8e52 [2021-10-24 10:15:15,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:15:15,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:15:15,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:15:15,504 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:15:15,505 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:15:15,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2021-10-24 10:15:15,596 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/data/c6a9164cd/2ae70e57da9b42eda04c33448316dfe8/FLAG4964cce39 [2021-10-24 10:15:16,215 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:15:16,218 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2021-10-24 10:15:16,237 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/data/c6a9164cd/2ae70e57da9b42eda04c33448316dfe8/FLAG4964cce39 [2021-10-24 10:15:16,518 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/data/c6a9164cd/2ae70e57da9b42eda04c33448316dfe8 [2021-10-24 10:15:16,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:15:16,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:15:16,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:15:16,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:15:16,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:15:16,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:15:16" (1/1) ... [2021-10-24 10:15:16,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cece772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:16, skipping insertion in model container [2021-10-24 10:15:16,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:15:16" (1/1) ... [2021-10-24 10:15:16,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:15:16,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:15:16,940 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_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c[37270,37283] [2021-10-24 10:15:16,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:15:16,983 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:15:17,086 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_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c[37270,37283] [2021-10-24 10:15:17,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:15:17,110 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:15:17,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:17 WrapperNode [2021-10-24 10:15:17,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:15:17,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:15:17,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:15:17,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:15:17,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:17" (1/1) ... [2021-10-24 10:15:17,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:17" (1/1) ... [2021-10-24 10:15:17,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:15:17,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:15:17,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:15:17,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:15:17,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:17" (1/1) ... [2021-10-24 10:15:17,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:17" (1/1) ... [2021-10-24 10:15:17,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:17" (1/1) ... [2021-10-24 10:15:17,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:17" (1/1) ... [2021-10-24 10:15:17,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:17" (1/1) ... [2021-10-24 10:15:17,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:17" (1/1) ... [2021-10-24 10:15:17,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:17" (1/1) ... [2021-10-24 10:15:17,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:15:17,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:15:17,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:15:17,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:15:17,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:17" (1/1) ... [2021-10-24 10:15:17,316 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:15:17,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:15:17,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:15:17,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:15:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:15:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:15:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:15:17,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:15:17,582 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:15:18,210 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-10-24 10:15:18,211 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-10-24 10:15:18,221 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:15:18,221 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-24 10:15:18,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:15:18 BoogieIcfgContainer [2021-10-24 10:15:18,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:15:18,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:15:18,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:15:18,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:15:18,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:15:16" (1/3) ... [2021-10-24 10:15:18,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76573f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:15:18, skipping insertion in model container [2021-10-24 10:15:18,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:17" (2/3) ... [2021-10-24 10:15:18,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76573f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:15:18, skipping insertion in model container [2021-10-24 10:15:18,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:15:18" (3/3) ... [2021-10-24 10:15:18,244 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.BV.c.cil-1a.c [2021-10-24 10:15:18,256 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:15:18,256 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 10:15:18,327 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:15:18,335 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, mAutomataTypeConcurrency=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 [2021-10-24 10:15:18,336 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 10:15:18,358 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 123 states have (on average 1.7317073170731707) internal successors, (213), 124 states have internal predecessors, (213), 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) [2021-10-24 10:15:18,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 10:15:18,366 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:18,367 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] [2021-10-24 10:15:18,368 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:18,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:18,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1457697026, now seen corresponding path program 1 times [2021-10-24 10:15:18,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:18,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427941834] [2021-10-24 10:15:18,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:18,393 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:18,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:18,397 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:18,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:15:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:18,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:18,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:18,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:15:18,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:18,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:15:18,915 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:18,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1427941834] [2021-10-24 10:15:18,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1427941834] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:18,917 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:18,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:15:18,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981397632] [2021-10-24 10:15:18,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:15:18,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:18,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:15:18,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:18,947 INFO L87 Difference]: Start difference. First operand has 125 states, 123 states have (on average 1.7317073170731707) internal successors, (213), 124 states have internal predecessors, (213), 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 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-10-24 10:15:19,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:19,205 INFO L93 Difference]: Finished difference Result 246 states and 421 transitions. [2021-10-24 10:15:19,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:15:19,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2021-10-24 10:15:19,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:19,220 INFO L225 Difference]: With dead ends: 246 [2021-10-24 10:15:19,220 INFO L226 Difference]: Without dead ends: 112 [2021-10-24 10:15:19,224 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:19,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-10-24 10:15:19,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2021-10-24 10:15:19,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.5225225225225225) internal successors, (169), 111 states have internal predecessors, (169), 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) [2021-10-24 10:15:19,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 169 transitions. [2021-10-24 10:15:19,275 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 169 transitions. Word has length 24 [2021-10-24 10:15:19,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:19,276 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 169 transitions. [2021-10-24 10:15:19,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-10-24 10:15:19,277 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 169 transitions. [2021-10-24 10:15:19,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-24 10:15:19,279 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:19,279 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:15:19,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:19,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:19,505 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:19,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:19,513 INFO L82 PathProgramCache]: Analyzing trace with hash -611475394, now seen corresponding path program 1 times [2021-10-24 10:15:19,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:19,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624658512] [2021-10-24 10:15:19,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:19,520 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:19,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:19,522 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:19,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:15:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:19,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:19,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:19,790 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:15:19,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:19,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:15:19,993 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:19,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624658512] [2021-10-24 10:15:19,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624658512] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:19,994 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:19,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:15:19,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474461923] [2021-10-24 10:15:19,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:15:19,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:19,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:15:19,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:19,998 INFO L87 Difference]: Start difference. First operand 112 states and 169 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2021-10-24 10:15:20,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:20,265 INFO L93 Difference]: Finished difference Result 233 states and 356 transitions. [2021-10-24 10:15:20,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:15:20,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 36 [2021-10-24 10:15:20,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:20,269 INFO L225 Difference]: With dead ends: 233 [2021-10-24 10:15:20,269 INFO L226 Difference]: Without dead ends: 131 [2021-10-24 10:15:20,271 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:20,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-24 10:15:20,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 127. [2021-10-24 10:15:20,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.5) internal successors, (189), 126 states have internal predecessors, (189), 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) [2021-10-24 10:15:20,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 189 transitions. [2021-10-24 10:15:20,288 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 189 transitions. Word has length 36 [2021-10-24 10:15:20,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:20,288 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 189 transitions. [2021-10-24 10:15:20,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2021-10-24 10:15:20,289 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 189 transitions. [2021-10-24 10:15:20,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-24 10:15:20,292 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:20,292 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:15:20,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:20,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:20,508 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:20,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:20,509 INFO L82 PathProgramCache]: Analyzing trace with hash 213639527, now seen corresponding path program 1 times [2021-10-24 10:15:20,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:20,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259089265] [2021-10-24 10:15:20,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:20,511 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:20,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:20,513 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:20,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 10:15:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:20,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:20,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:20,918 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-24 10:15:20,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:21,085 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-24 10:15:21,086 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:21,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259089265] [2021-10-24 10:15:21,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259089265] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:21,087 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:21,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:15:21,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319469075] [2021-10-24 10:15:21,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:15:21,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:21,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:15:21,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:21,093 INFO L87 Difference]: Start difference. First operand 127 states and 189 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-10-24 10:15:21,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:21,297 INFO L93 Difference]: Finished difference Result 265 states and 400 transitions. [2021-10-24 10:15:21,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:15:21,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 50 [2021-10-24 10:15:21,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:21,306 INFO L225 Difference]: With dead ends: 265 [2021-10-24 10:15:21,306 INFO L226 Difference]: Without dead ends: 148 [2021-10-24 10:15:21,311 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:21,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-10-24 10:15:21,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2021-10-24 10:15:21,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.4755244755244756) internal successors, (211), 143 states have internal predecessors, (211), 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) [2021-10-24 10:15:21,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 211 transitions. [2021-10-24 10:15:21,342 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 211 transitions. Word has length 50 [2021-10-24 10:15:21,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:21,344 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 211 transitions. [2021-10-24 10:15:21,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-10-24 10:15:21,346 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 211 transitions. [2021-10-24 10:15:21,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-24 10:15:21,358 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:21,358 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-24 10:15:21,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:21,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:21,573 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:21,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:21,574 INFO L82 PathProgramCache]: Analyzing trace with hash 370823208, now seen corresponding path program 1 times [2021-10-24 10:15:21,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:21,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291501623] [2021-10-24 10:15:21,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:21,576 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:21,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:21,579 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:21,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 10:15:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:21,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:21,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:22,035 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-24 10:15:22,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:22,226 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-24 10:15:22,227 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:22,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291501623] [2021-10-24 10:15:22,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291501623] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:22,229 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:22,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:15:22,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847311936] [2021-10-24 10:15:22,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:15:22,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:22,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:15:22,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:22,234 INFO L87 Difference]: Start difference. First operand 144 states and 211 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2021-10-24 10:15:22,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:22,552 INFO L93 Difference]: Finished difference Result 349 states and 534 transitions. [2021-10-24 10:15:22,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:15:22,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 67 [2021-10-24 10:15:22,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:22,556 INFO L225 Difference]: With dead ends: 349 [2021-10-24 10:15:22,556 INFO L226 Difference]: Without dead ends: 215 [2021-10-24 10:15:22,557 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:22,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-10-24 10:15:22,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 207. [2021-10-24 10:15:22,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.441747572815534) internal successors, (297), 206 states have internal predecessors, (297), 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) [2021-10-24 10:15:22,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 297 transitions. [2021-10-24 10:15:22,593 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 297 transitions. Word has length 67 [2021-10-24 10:15:22,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:22,596 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 297 transitions. [2021-10-24 10:15:22,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2021-10-24 10:15:22,597 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 297 transitions. [2021-10-24 10:15:22,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-24 10:15:22,601 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:22,603 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-24 10:15:22,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-24 10:15:22,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:22,818 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:22,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:22,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1528022105, now seen corresponding path program 1 times [2021-10-24 10:15:22,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:22,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602794870] [2021-10-24 10:15:22,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:22,821 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:22,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:22,822 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:22,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 10:15:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:23,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:23,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:23,296 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-24 10:15:23,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:23,479 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-24 10:15:23,480 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:23,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602794870] [2021-10-24 10:15:23,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602794870] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:23,481 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:23,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:15:23,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027943801] [2021-10-24 10:15:23,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:15:23,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:23,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:15:23,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:23,483 INFO L87 Difference]: Start difference. First operand 207 states and 297 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-10-24 10:15:23,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:23,653 INFO L93 Difference]: Finished difference Result 427 states and 620 transitions. [2021-10-24 10:15:23,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:15:23,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 68 [2021-10-24 10:15:23,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:23,656 INFO L225 Difference]: With dead ends: 427 [2021-10-24 10:15:23,657 INFO L226 Difference]: Without dead ends: 230 [2021-10-24 10:15:23,658 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:23,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-10-24 10:15:23,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 226. [2021-10-24 10:15:23,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.4266666666666667) internal successors, (321), 225 states have internal predecessors, (321), 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) [2021-10-24 10:15:23,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 321 transitions. [2021-10-24 10:15:23,672 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 321 transitions. Word has length 68 [2021-10-24 10:15:23,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:23,673 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 321 transitions. [2021-10-24 10:15:23,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-10-24 10:15:23,673 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 321 transitions. [2021-10-24 10:15:23,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-10-24 10:15:23,675 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:23,675 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-10-24 10:15:23,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:23,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:23,891 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:23,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:23,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1678422895, now seen corresponding path program 1 times [2021-10-24 10:15:23,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:23,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192528609] [2021-10-24 10:15:23,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:23,894 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:23,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:23,896 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:23,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 10:15:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:24,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:24,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:24,456 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-10-24 10:15:24,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:24,673 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-10-24 10:15:24,674 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:24,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1192528609] [2021-10-24 10:15:24,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1192528609] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:24,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:24,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:15:24,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548330589] [2021-10-24 10:15:24,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:15:24,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:24,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:15:24,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:24,677 INFO L87 Difference]: Start difference. First operand 226 states and 321 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-10-24 10:15:24,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:24,861 INFO L93 Difference]: Finished difference Result 466 states and 670 transitions. [2021-10-24 10:15:24,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:15:24,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 84 [2021-10-24 10:15:24,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:24,864 INFO L225 Difference]: With dead ends: 466 [2021-10-24 10:15:24,864 INFO L226 Difference]: Without dead ends: 250 [2021-10-24 10:15:24,865 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:24,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-24 10:15:24,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 247. [2021-10-24 10:15:24,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 246 states have (on average 1.410569105691057) internal successors, (347), 246 states have internal predecessors, (347), 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) [2021-10-24 10:15:24,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 347 transitions. [2021-10-24 10:15:24,884 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 347 transitions. Word has length 84 [2021-10-24 10:15:24,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:24,889 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 347 transitions. [2021-10-24 10:15:24,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-10-24 10:15:24,892 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 347 transitions. [2021-10-24 10:15:24,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-10-24 10:15:24,894 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:24,895 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2021-10-24 10:15:24,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-24 10:15:25,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:25,109 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:25,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:25,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1619803512, now seen corresponding path program 1 times [2021-10-24 10:15:25,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:25,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880623509] [2021-10-24 10:15:25,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:25,111 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:25,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:25,113 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:25,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-24 10:15:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:25,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:25,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:25,784 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-24 10:15:25,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:26,158 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-24 10:15:26,158 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:26,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880623509] [2021-10-24 10:15:26,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880623509] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:26,159 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:26,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:15:26,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068238647] [2021-10-24 10:15:26,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:15:26,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:26,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:15:26,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:26,162 INFO L87 Difference]: Start difference. First operand 247 states and 347 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2021-10-24 10:15:26,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:26,232 INFO L93 Difference]: Finished difference Result 743 states and 1042 transitions. [2021-10-24 10:15:26,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:15:26,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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 [2021-10-24 10:15:26,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:26,238 INFO L225 Difference]: With dead ends: 743 [2021-10-24 10:15:26,238 INFO L226 Difference]: Without dead ends: 506 [2021-10-24 10:15:26,239 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:26,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2021-10-24 10:15:26,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2021-10-24 10:15:26,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.39009900990099) internal successors, (702), 505 states have internal predecessors, (702), 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) [2021-10-24 10:15:26,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 702 transitions. [2021-10-24 10:15:26,262 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 702 transitions. Word has length 103 [2021-10-24 10:15:26,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:26,262 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 702 transitions. [2021-10-24 10:15:26,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2021-10-24 10:15:26,263 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 702 transitions. [2021-10-24 10:15:26,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-10-24 10:15:26,265 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:26,266 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2021-10-24 10:15:26,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:26,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:26,481 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:26,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:26,482 INFO L82 PathProgramCache]: Analyzing trace with hash -847602632, now seen corresponding path program 1 times [2021-10-24 10:15:26,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:26,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745976399] [2021-10-24 10:15:26,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:26,483 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:26,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:26,484 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:26,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-24 10:15:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:26,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:26,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:27,198 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-24 10:15:27,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:27,521 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-24 10:15:27,521 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:27,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745976399] [2021-10-24 10:15:27,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745976399] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:27,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:27,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:15:27,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279182604] [2021-10-24 10:15:27,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:15:27,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:27,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:15:27,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:27,525 INFO L87 Difference]: Start difference. First operand 506 states and 702 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2021-10-24 10:15:27,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:27,567 INFO L93 Difference]: Finished difference Result 1023 states and 1418 transitions. [2021-10-24 10:15:27,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:15:27,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 [2021-10-24 10:15:27,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:27,572 INFO L225 Difference]: With dead ends: 1023 [2021-10-24 10:15:27,573 INFO L226 Difference]: Without dead ends: 527 [2021-10-24 10:15:27,574 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:27,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2021-10-24 10:15:27,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2021-10-24 10:15:27,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 526 states have (on average 1.3859315589353611) internal successors, (729), 526 states have internal predecessors, (729), 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) [2021-10-24 10:15:27,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 729 transitions. [2021-10-24 10:15:27,595 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 729 transitions. Word has length 103 [2021-10-24 10:15:27,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:27,596 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 729 transitions. [2021-10-24 10:15:27,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2021-10-24 10:15:27,596 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 729 transitions. [2021-10-24 10:15:27,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-10-24 10:15:27,598 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:27,599 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2021-10-24 10:15:27,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:27,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:27,818 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:27,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:27,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1168582955, now seen corresponding path program 1 times [2021-10-24 10:15:27,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:27,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836161954] [2021-10-24 10:15:27,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:27,820 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:27,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:27,821 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:27,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-24 10:15:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:28,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:28,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:28,478 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-24 10:15:28,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-24 10:15:28,849 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:28,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836161954] [2021-10-24 10:15:28,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836161954] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:28,850 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:28,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:15:28,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818087157] [2021-10-24 10:15:28,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:15:28,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:28,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:15:28,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:28,852 INFO L87 Difference]: Start difference. First operand 527 states and 729 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-10-24 10:15:28,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:28,891 INFO L93 Difference]: Finished difference Result 1070 states and 1478 transitions. [2021-10-24 10:15:28,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:15:28,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 104 [2021-10-24 10:15:28,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:28,897 INFO L225 Difference]: With dead ends: 1070 [2021-10-24 10:15:28,897 INFO L226 Difference]: Without dead ends: 553 [2021-10-24 10:15:28,899 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:15:28,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2021-10-24 10:15:28,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2021-10-24 10:15:28,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 552 states have (on average 1.3804347826086956) internal successors, (762), 552 states have internal predecessors, (762), 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) [2021-10-24 10:15:28,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 762 transitions. [2021-10-24 10:15:28,925 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 762 transitions. Word has length 104 [2021-10-24 10:15:28,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:28,925 INFO L470 AbstractCegarLoop]: Abstraction has 553 states and 762 transitions. [2021-10-24 10:15:28,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-10-24 10:15:28,927 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 762 transitions. [2021-10-24 10:15:28,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-24 10:15:28,929 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:28,929 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2021-10-24 10:15:28,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:29,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:29,145 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:29,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:29,146 INFO L82 PathProgramCache]: Analyzing trace with hash -53319870, now seen corresponding path program 1 times [2021-10-24 10:15:29,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:29,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645244189] [2021-10-24 10:15:29,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:29,147 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:29,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:29,148 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:29,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-24 10:15:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:29,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:29,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:29,915 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-10-24 10:15:29,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:30,144 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-10-24 10:15:30,144 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:30,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645244189] [2021-10-24 10:15:30,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645244189] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:30,145 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:30,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:15:30,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937803980] [2021-10-24 10:15:30,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:15:30,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:30,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:15:30,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:30,148 INFO L87 Difference]: Start difference. First operand 553 states and 762 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2021-10-24 10:15:30,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:30,235 INFO L93 Difference]: Finished difference Result 1520 states and 2113 transitions. [2021-10-24 10:15:30,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:15:30,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 105 [2021-10-24 10:15:30,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:30,244 INFO L225 Difference]: With dead ends: 1520 [2021-10-24 10:15:30,244 INFO L226 Difference]: Without dead ends: 1003 [2021-10-24 10:15:30,246 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:30,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2021-10-24 10:15:30,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2021-10-24 10:15:30,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 1002 states have (on average 1.3892215568862276) internal successors, (1392), 1002 states have internal predecessors, (1392), 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) [2021-10-24 10:15:30,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1392 transitions. [2021-10-24 10:15:30,285 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1392 transitions. Word has length 105 [2021-10-24 10:15:30,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:30,286 INFO L470 AbstractCegarLoop]: Abstraction has 1003 states and 1392 transitions. [2021-10-24 10:15:30,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2021-10-24 10:15:30,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1392 transitions. [2021-10-24 10:15:30,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-10-24 10:15:30,295 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:30,295 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:15:30,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:30,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:30,510 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:30,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:30,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1519363111, now seen corresponding path program 1 times [2021-10-24 10:15:30,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:30,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692620340] [2021-10-24 10:15:30,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:30,511 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:30,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:30,512 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:30,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-24 10:15:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:30,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:30,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:31,440 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-10-24 10:15:31,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:31,858 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-10-24 10:15:31,859 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:31,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692620340] [2021-10-24 10:15:31,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [692620340] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:31,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:31,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:15:31,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138416187] [2021-10-24 10:15:31,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:15:31,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:31,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:15:31,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:31,864 INFO L87 Difference]: Start difference. First operand 1003 states and 1392 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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) [2021-10-24 10:15:32,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:32,133 INFO L93 Difference]: Finished difference Result 2091 states and 2938 transitions. [2021-10-24 10:15:32,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:15:32,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 173 [2021-10-24 10:15:32,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:32,144 INFO L225 Difference]: With dead ends: 2091 [2021-10-24 10:15:32,144 INFO L226 Difference]: Without dead ends: 1124 [2021-10-24 10:15:32,146 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:32,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2021-10-24 10:15:32,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1095. [2021-10-24 10:15:32,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 1094 states have (on average 1.3711151736745886) internal successors, (1500), 1094 states have internal predecessors, (1500), 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) [2021-10-24 10:15:32,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1500 transitions. [2021-10-24 10:15:32,192 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1500 transitions. Word has length 173 [2021-10-24 10:15:32,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:32,192 INFO L470 AbstractCegarLoop]: Abstraction has 1095 states and 1500 transitions. [2021-10-24 10:15:32,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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) [2021-10-24 10:15:32,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1500 transitions. [2021-10-24 10:15:32,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-10-24 10:15:32,198 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:32,198 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2021-10-24 10:15:32,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:32,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:32,418 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:32,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:32,419 INFO L82 PathProgramCache]: Analyzing trace with hash -759567935, now seen corresponding path program 1 times [2021-10-24 10:15:32,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:32,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754445630] [2021-10-24 10:15:32,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:32,420 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:32,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:32,422 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:32,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-24 10:15:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:32,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:15:32,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:33,711 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 456 proven. 20 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-10-24 10:15:33,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:34,273 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 440 proven. 36 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-10-24 10:15:34,274 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:34,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754445630] [2021-10-24 10:15:34,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754445630] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:15:34,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [174828817] [2021-10-24 10:15:34,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:34,275 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 10:15:34,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 10:15:34,277 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 10:15:34,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-10-24 10:15:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:35,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:35,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:35,828 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2021-10-24 10:15:35,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:36,435 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2021-10-24 10:15:36,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [174828817] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:36,435 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-24 10:15:36,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-10-24 10:15:36,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371050166] [2021-10-24 10:15:36,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:15:36,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:36,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:15:36,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:15:36,439 INFO L87 Difference]: Start difference. First operand 1095 states and 1500 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2021-10-24 10:15:36,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:36,498 INFO L93 Difference]: Finished difference Result 2409 states and 3304 transitions. [2021-10-24 10:15:36,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:15:36,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 194 [2021-10-24 10:15:36,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:36,508 INFO L225 Difference]: With dead ends: 2409 [2021-10-24 10:15:36,509 INFO L226 Difference]: Without dead ends: 1350 [2021-10-24 10:15:36,512 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 772 GetRequests, 765 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 35.5ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:15:36,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2021-10-24 10:15:36,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1350. [2021-10-24 10:15:36,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1350 states, 1349 states have (on average 1.369162342475908) internal successors, (1847), 1349 states have internal predecessors, (1847), 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) [2021-10-24 10:15:36,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1847 transitions. [2021-10-24 10:15:36,566 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1847 transitions. Word has length 194 [2021-10-24 10:15:36,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:36,566 INFO L470 AbstractCegarLoop]: Abstraction has 1350 states and 1847 transitions. [2021-10-24 10:15:36,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2021-10-24 10:15:36,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1847 transitions. [2021-10-24 10:15:36,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-10-24 10:15:36,572 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:36,573 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:15:36,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:36,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:36,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt [2021-10-24 10:15:36,986 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:36,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:36,987 INFO L82 PathProgramCache]: Analyzing trace with hash 342847369, now seen corresponding path program 1 times [2021-10-24 10:15:36,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:36,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785821065] [2021-10-24 10:15:36,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:36,988 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:36,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:36,990 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:37,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-24 10:15:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:37,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:15:37,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:38,617 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 458 proven. 20 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-10-24 10:15:38,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:39,230 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 442 proven. 36 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-10-24 10:15:39,230 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:39,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785821065] [2021-10-24 10:15:39,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785821065] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:15:39,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [446425484] [2021-10-24 10:15:39,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:39,233 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 10:15:39,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 10:15:39,234 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 10:15:39,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-10-24 10:15:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:40,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:15:40,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:41,299 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 458 proven. 20 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-10-24 10:15:41,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:41,924 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 442 proven. 36 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-10-24 10:15:41,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [446425484] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:15:41,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751040742] [2021-10-24 10:15:41,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:41,925 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:15:41,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:15:41,928 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:15:41,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-24 10:15:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:43,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:15:43,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:43,994 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 458 proven. 20 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-10-24 10:15:43,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:44,544 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 442 proven. 36 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-10-24 10:15:44,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751040742] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:15:44,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-24 10:15:44,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2021-10-24 10:15:44,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590884189] [2021-10-24 10:15:44,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:15:44,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:44,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:15:44,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:15:44,553 INFO L87 Difference]: Start difference. First operand 1350 states and 1847 transitions. Second operand has 8 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 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) [2021-10-24 10:15:45,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:45,191 INFO L93 Difference]: Finished difference Result 3072 states and 4244 transitions. [2021-10-24 10:15:45,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 10:15:45,192 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 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 196 [2021-10-24 10:15:45,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:45,204 INFO L225 Difference]: With dead ends: 3072 [2021-10-24 10:15:45,204 INFO L226 Difference]: Without dead ends: 1779 [2021-10-24 10:15:45,209 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1176 GetRequests, 1167 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 63.0ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-10-24 10:15:45,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2021-10-24 10:15:45,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 1663. [2021-10-24 10:15:45,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1663 states, 1662 states have (on average 1.362214199759326) internal successors, (2264), 1662 states have internal predecessors, (2264), 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) [2021-10-24 10:15:45,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1663 states to 1663 states and 2264 transitions. [2021-10-24 10:15:45,294 INFO L78 Accepts]: Start accepts. Automaton has 1663 states and 2264 transitions. Word has length 196 [2021-10-24 10:15:45,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:45,295 INFO L470 AbstractCegarLoop]: Abstraction has 1663 states and 2264 transitions. [2021-10-24 10:15:45,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 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) [2021-10-24 10:15:45,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1663 states and 2264 transitions. [2021-10-24 10:15:45,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-10-24 10:15:45,302 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:45,303 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 9, 7, 7, 5, 5, 3, 3, 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] [2021-10-24 10:15:45,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-10-24 10:15:45,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:45,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:45,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt [2021-10-24 10:15:45,920 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:45,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:45,921 INFO L82 PathProgramCache]: Analyzing trace with hash 228275513, now seen corresponding path program 1 times [2021-10-24 10:15:45,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:45,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283587607] [2021-10-24 10:15:45,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:45,922 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:45,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:45,923 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:45,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-24 10:15:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:47,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:47,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:47,626 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 463 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-10-24 10:15:47,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:48,126 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 463 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-10-24 10:15:48,126 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:48,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283587607] [2021-10-24 10:15:48,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [283587607] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:48,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:48,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:15:48,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622381263] [2021-10-24 10:15:48,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:15:48,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:48,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:15:48,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:48,128 INFO L87 Difference]: Start difference. First operand 1663 states and 2264 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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) [2021-10-24 10:15:48,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:48,426 INFO L93 Difference]: Finished difference Result 3473 states and 4788 transitions. [2021-10-24 10:15:48,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:15:48,427 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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 221 [2021-10-24 10:15:48,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:48,440 INFO L225 Difference]: With dead ends: 3473 [2021-10-24 10:15:48,441 INFO L226 Difference]: Without dead ends: 1867 [2021-10-24 10:15:48,444 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:48,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1867 states. [2021-10-24 10:15:48,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1867 to 1831. [2021-10-24 10:15:48,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1831 states, 1830 states have (on average 1.3420765027322403) internal successors, (2456), 1830 states have internal predecessors, (2456), 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) [2021-10-24 10:15:48,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1831 states to 1831 states and 2456 transitions. [2021-10-24 10:15:48,525 INFO L78 Accepts]: Start accepts. Automaton has 1831 states and 2456 transitions. Word has length 221 [2021-10-24 10:15:48,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:48,526 INFO L470 AbstractCegarLoop]: Abstraction has 1831 states and 2456 transitions. [2021-10-24 10:15:48,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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) [2021-10-24 10:15:48,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1831 states and 2456 transitions. [2021-10-24 10:15:48,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-10-24 10:15:48,534 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:48,535 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:15:48,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:48,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:48,753 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:48,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:48,754 INFO L82 PathProgramCache]: Analyzing trace with hash 629263864, now seen corresponding path program 1 times [2021-10-24 10:15:48,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:48,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919298832] [2021-10-24 10:15:48,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:48,755 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:48,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:48,756 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:48,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-24 10:15:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:49,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:49,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:50,574 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-10-24 10:15:50,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:51,122 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-10-24 10:15:51,122 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:51,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919298832] [2021-10-24 10:15:51,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919298832] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:51,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:51,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:15:51,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773179649] [2021-10-24 10:15:51,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:15:51,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:51,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:15:51,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:51,125 INFO L87 Difference]: Start difference. First operand 1831 states and 2456 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2021-10-24 10:15:51,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:51,401 INFO L93 Difference]: Finished difference Result 3809 states and 5192 transitions. [2021-10-24 10:15:51,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:15:51,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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 232 [2021-10-24 10:15:51,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:51,415 INFO L225 Difference]: With dead ends: 3809 [2021-10-24 10:15:51,415 INFO L226 Difference]: Without dead ends: 2035 [2021-10-24 10:15:51,418 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:51,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2021-10-24 10:15:51,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 2017. [2021-10-24 10:15:51,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2017 states, 2016 states have (on average 1.3224206349206349) internal successors, (2666), 2016 states have internal predecessors, (2666), 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) [2021-10-24 10:15:51,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2666 transitions. [2021-10-24 10:15:51,503 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2666 transitions. Word has length 232 [2021-10-24 10:15:51,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:51,503 INFO L470 AbstractCegarLoop]: Abstraction has 2017 states and 2666 transitions. [2021-10-24 10:15:51,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2021-10-24 10:15:51,504 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2666 transitions. [2021-10-24 10:15:51,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-10-24 10:15:51,512 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:51,513 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 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] [2021-10-24 10:15:51,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:51,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:51,730 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:51,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:51,731 INFO L82 PathProgramCache]: Analyzing trace with hash -749493446, now seen corresponding path program 1 times [2021-10-24 10:15:51,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:51,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276742330] [2021-10-24 10:15:51,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:51,732 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:51,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:51,733 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:51,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-24 10:15:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:53,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:53,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:53,683 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-10-24 10:15:53,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:54,256 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-10-24 10:15:54,257 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:54,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276742330] [2021-10-24 10:15:54,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276742330] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:54,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:54,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:15:54,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740893899] [2021-10-24 10:15:54,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:15:54,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:54,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:15:54,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:54,259 INFO L87 Difference]: Start difference. First operand 2017 states and 2666 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2021-10-24 10:15:54,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:54,545 INFO L93 Difference]: Finished difference Result 4259 states and 5714 transitions. [2021-10-24 10:15:54,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:15:54,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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 262 [2021-10-24 10:15:54,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:54,559 INFO L225 Difference]: With dead ends: 4259 [2021-10-24 10:15:54,559 INFO L226 Difference]: Without dead ends: 2299 [2021-10-24 10:15:54,562 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:54,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2299 states. [2021-10-24 10:15:54,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2299 to 2239. [2021-10-24 10:15:54,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2239 states, 2238 states have (on average 1.3011617515638962) internal successors, (2912), 2238 states have internal predecessors, (2912), 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) [2021-10-24 10:15:54,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 2912 transitions. [2021-10-24 10:15:54,700 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 2912 transitions. Word has length 262 [2021-10-24 10:15:54,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:54,713 INFO L470 AbstractCegarLoop]: Abstraction has 2239 states and 2912 transitions. [2021-10-24 10:15:54,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2021-10-24 10:15:54,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 2912 transitions. [2021-10-24 10:15:54,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-10-24 10:15:54,724 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:54,725 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 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] [2021-10-24 10:15:54,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-10-24 10:15:54,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:54,956 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:54,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:54,956 INFO L82 PathProgramCache]: Analyzing trace with hash -120716101, now seen corresponding path program 1 times [2021-10-24 10:15:54,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:54,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523372148] [2021-10-24 10:15:54,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:54,957 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:54,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:54,958 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:54,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-24 10:15:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:56,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:56,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:15:56,736 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 635 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-24 10:15:56,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:15:57,230 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 635 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-24 10:15:57,230 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:15:57,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523372148] [2021-10-24 10:15:57,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523372148] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:15:57,230 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:15:57,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:15:57,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758258910] [2021-10-24 10:15:57,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:15:57,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:15:57,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:15:57,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:57,232 INFO L87 Difference]: Start difference. First operand 2239 states and 2912 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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) [2021-10-24 10:15:57,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:15:57,357 INFO L93 Difference]: Finished difference Result 8587 states and 11198 transitions. [2021-10-24 10:15:57,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:15:57,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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 263 [2021-10-24 10:15:57,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:15:57,394 INFO L225 Difference]: With dead ends: 8587 [2021-10-24 10:15:57,394 INFO L226 Difference]: Without dead ends: 6405 [2021-10-24 10:15:57,399 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:15:57,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2021-10-24 10:15:57,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 6401. [2021-10-24 10:15:57,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6400 states have (on average 1.303125) internal successors, (8340), 6400 states have internal predecessors, (8340), 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) [2021-10-24 10:15:57,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 8340 transitions. [2021-10-24 10:15:57,656 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 8340 transitions. Word has length 263 [2021-10-24 10:15:57,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:15:57,657 INFO L470 AbstractCegarLoop]: Abstraction has 6401 states and 8340 transitions. [2021-10-24 10:15:57,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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) [2021-10-24 10:15:57,657 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 8340 transitions. [2021-10-24 10:15:57,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-10-24 10:15:57,673 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:15:57,674 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:15:57,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-24 10:15:57,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:15:57,890 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:15:57,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:15:57,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1096027025, now seen corresponding path program 1 times [2021-10-24 10:15:57,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:15:57,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293830572] [2021-10-24 10:15:57,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:15:57,892 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:15:57,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:15:57,893 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:15:57,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-24 10:15:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:15:59,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:15:59,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:16:00,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 654 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-10-24 10:16:00,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:16:00,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 654 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-10-24 10:16:00,604 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:16:00,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293830572] [2021-10-24 10:16:00,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293830572] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:16:00,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:16:00,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:16:00,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997205695] [2021-10-24 10:16:00,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:16:00,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:16:00,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:16:00,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:16:00,606 INFO L87 Difference]: Start difference. First operand 6401 states and 8340 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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) [2021-10-24 10:16:00,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:16:00,936 INFO L93 Difference]: Finished difference Result 13123 states and 17164 transitions. [2021-10-24 10:16:00,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:16:00,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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 287 [2021-10-24 10:16:00,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:16:01,002 INFO L225 Difference]: With dead ends: 13123 [2021-10-24 10:16:01,003 INFO L226 Difference]: Without dead ends: 6779 [2021-10-24 10:16:01,011 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 570 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:16:01,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6779 states. [2021-10-24 10:16:01,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6779 to 6599. [2021-10-24 10:16:01,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6599 states, 6598 states have (on average 1.2958472264322523) internal successors, (8550), 6598 states have internal predecessors, (8550), 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) [2021-10-24 10:16:01,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6599 states to 6599 states and 8550 transitions. [2021-10-24 10:16:01,318 INFO L78 Accepts]: Start accepts. Automaton has 6599 states and 8550 transitions. Word has length 287 [2021-10-24 10:16:01,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:16:01,318 INFO L470 AbstractCegarLoop]: Abstraction has 6599 states and 8550 transitions. [2021-10-24 10:16:01,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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) [2021-10-24 10:16:01,319 INFO L276 IsEmpty]: Start isEmpty. Operand 6599 states and 8550 transitions. [2021-10-24 10:16:01,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2021-10-24 10:16:01,333 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:16:01,333 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:16:01,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-24 10:16:01,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:16:01,551 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:16:01,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:16:01,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1966900500, now seen corresponding path program 1 times [2021-10-24 10:16:01,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:16:01,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006593924] [2021-10-24 10:16:01,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:16:01,552 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:16:01,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:16:01,554 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:16:01,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-24 10:16:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:16:02,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:16:02,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:16:03,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-10-24 10:16:03,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:16:04,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-10-24 10:16:04,011 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:16:04,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006593924] [2021-10-24 10:16:04,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006593924] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:16:04,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:16:04,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:16:04,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055859167] [2021-10-24 10:16:04,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:16:04,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:16:04,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:16:04,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:16:04,014 INFO L87 Difference]: Start difference. First operand 6599 states and 8550 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2021-10-24 10:16:04,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:16:04,326 INFO L93 Difference]: Finished difference Result 13987 states and 18394 transitions. [2021-10-24 10:16:04,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:16:04,327 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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 299 [2021-10-24 10:16:04,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:16:04,346 INFO L225 Difference]: With dead ends: 13987 [2021-10-24 10:16:04,346 INFO L226 Difference]: Without dead ends: 7445 [2021-10-24 10:16:04,354 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 594 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:16:04,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7445 states. [2021-10-24 10:16:04,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7445 to 7265. [2021-10-24 10:16:04,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7265 states, 7264 states have (on average 1.27863436123348) internal successors, (9288), 7264 states have internal predecessors, (9288), 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) [2021-10-24 10:16:04,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7265 states to 7265 states and 9288 transitions. [2021-10-24 10:16:04,615 INFO L78 Accepts]: Start accepts. Automaton has 7265 states and 9288 transitions. Word has length 299 [2021-10-24 10:16:04,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:16:04,616 INFO L470 AbstractCegarLoop]: Abstraction has 7265 states and 9288 transitions. [2021-10-24 10:16:04,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2021-10-24 10:16:04,616 INFO L276 IsEmpty]: Start isEmpty. Operand 7265 states and 9288 transitions. [2021-10-24 10:16:04,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-10-24 10:16:04,631 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:16:04,632 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:16:04,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-24 10:16:04,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:16:04,849 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:16:04,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:16:04,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1281776100, now seen corresponding path program 1 times [2021-10-24 10:16:04,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:16:04,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1595825934] [2021-10-24 10:16:04,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:16:04,851 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:16:04,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:16:04,852 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:16:04,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-24 10:16:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:16:06,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:16:06,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:16:07,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 759 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-10-24 10:16:07,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:16:07,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 759 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-10-24 10:16:07,745 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:16:07,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1595825934] [2021-10-24 10:16:07,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1595825934] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:16:07,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:16:07,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:16:07,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540677380] [2021-10-24 10:16:07,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:16:07,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:16:07,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:16:07,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:16:07,748 INFO L87 Difference]: Start difference. First operand 7265 states and 9288 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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) [2021-10-24 10:16:08,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:16:08,071 INFO L93 Difference]: Finished difference Result 15373 states and 19960 transitions. [2021-10-24 10:16:08,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:16:08,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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 336 [2021-10-24 10:16:08,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:16:08,087 INFO L225 Difference]: With dead ends: 15373 [2021-10-24 10:16:08,088 INFO L226 Difference]: Without dead ends: 8165 [2021-10-24 10:16:08,095 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:16:08,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8165 states. [2021-10-24 10:16:08,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8165 to 8003. [2021-10-24 10:16:08,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8003 states, 8002 states have (on average 1.2619345163709073) internal successors, (10098), 8002 states have internal predecessors, (10098), 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) [2021-10-24 10:16:08,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8003 states to 8003 states and 10098 transitions. [2021-10-24 10:16:08,360 INFO L78 Accepts]: Start accepts. Automaton has 8003 states and 10098 transitions. Word has length 336 [2021-10-24 10:16:08,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:16:08,361 INFO L470 AbstractCegarLoop]: Abstraction has 8003 states and 10098 transitions. [2021-10-24 10:16:08,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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) [2021-10-24 10:16:08,362 INFO L276 IsEmpty]: Start isEmpty. Operand 8003 states and 10098 transitions. [2021-10-24 10:16:08,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2021-10-24 10:16:08,377 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:16:08,377 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:16:08,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-24 10:16:08,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:16:08,594 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:16:08,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:16:08,595 INFO L82 PathProgramCache]: Analyzing trace with hash -321729676, now seen corresponding path program 1 times [2021-10-24 10:16:08,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:16:08,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976942629] [2021-10-24 10:16:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:16:08,596 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:16:08,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:16:08,597 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:16:08,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-24 10:16:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:16:10,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:16:10,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:16:10,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-10-24 10:16:10,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:16:11,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-10-24 10:16:11,713 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:16:11,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976942629] [2021-10-24 10:16:11,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976942629] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:16:11,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [696268966] [2021-10-24 10:16:11,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:16:11,714 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 10:16:11,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 10:16:11,718 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 10:16:11,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2021-10-24 10:16:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:16:14,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:16:14,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:16:15,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-10-24 10:16:15,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:16:15,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-10-24 10:16:15,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [696268966] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:16:15,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893511884] [2021-10-24 10:16:15,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:16:15,809 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:16:15,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:16:15,810 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:16:15,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-24 10:16:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:16:18,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:16:18,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:16:19,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-10-24 10:16:19,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:16:20,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-10-24 10:16:20,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893511884] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:16:20,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-24 10:16:20,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2021-10-24 10:16:20,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377866590] [2021-10-24 10:16:20,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:16:20,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:16:20,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:16:20,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:16:20,014 INFO L87 Difference]: Start difference. First operand 8003 states and 10098 transitions. Second operand has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 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) [2021-10-24 10:16:20,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:16:20,981 INFO L93 Difference]: Finished difference Result 25706 states and 32511 transitions. [2021-10-24 10:16:20,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-24 10:16:20,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 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 359 [2021-10-24 10:16:20,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:16:21,021 INFO L225 Difference]: With dead ends: 25706 [2021-10-24 10:16:21,021 INFO L226 Difference]: Without dead ends: 17760 [2021-10-24 10:16:21,033 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2156 GetRequests, 2148 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 44.9ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-24 10:16:21,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17760 states. [2021-10-24 10:16:21,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17760 to 10930. [2021-10-24 10:16:21,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10930 states, 10929 states have (on average 1.2780675267636563) internal successors, (13968), 10929 states have internal predecessors, (13968), 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) [2021-10-24 10:16:21,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10930 states to 10930 states and 13968 transitions. [2021-10-24 10:16:21,457 INFO L78 Accepts]: Start accepts. Automaton has 10930 states and 13968 transitions. Word has length 359 [2021-10-24 10:16:21,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:16:21,458 INFO L470 AbstractCegarLoop]: Abstraction has 10930 states and 13968 transitions. [2021-10-24 10:16:21,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 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) [2021-10-24 10:16:21,459 INFO L276 IsEmpty]: Start isEmpty. Operand 10930 states and 13968 transitions. [2021-10-24 10:16:21,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2021-10-24 10:16:21,491 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:16:21,491 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:16:21,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2021-10-24 10:16:21,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-24 10:16:21,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-24 10:16:22,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:16:22,100 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:16:22,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:16:22,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1433832451, now seen corresponding path program 1 times [2021-10-24 10:16:22,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:16:22,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070894754] [2021-10-24 10:16:22,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:16:22,102 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:16:22,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:16:22,103 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:16:22,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-24 10:16:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:16:24,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:16:24,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:16:25,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 930 proven. 0 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2021-10-24 10:16:25,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:16:26,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 930 proven. 0 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2021-10-24 10:16:26,439 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:16:26,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070894754] [2021-10-24 10:16:26,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070894754] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:16:26,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:16:26,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:16:26,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558612387] [2021-10-24 10:16:26,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:16:26,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:16:26,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:16:26,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:16:26,441 INFO L87 Difference]: Start difference. First operand 10930 states and 13968 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2021-10-24 10:16:26,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:16:26,684 INFO L93 Difference]: Finished difference Result 22761 states and 28697 transitions. [2021-10-24 10:16:26,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:16:26,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 361 [2021-10-24 10:16:26,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:16:26,711 INFO L225 Difference]: With dead ends: 22761 [2021-10-24 10:16:26,711 INFO L226 Difference]: Without dead ends: 11888 [2021-10-24 10:16:26,722 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 719 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:16:26,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11888 states. [2021-10-24 10:16:27,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11888 to 11329. [2021-10-24 10:16:27,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11329 states, 11328 states have (on average 1.2457627118644068) internal successors, (14112), 11328 states have internal predecessors, (14112), 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) [2021-10-24 10:16:27,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11329 states to 11329 states and 14112 transitions. [2021-10-24 10:16:27,130 INFO L78 Accepts]: Start accepts. Automaton has 11329 states and 14112 transitions. Word has length 361 [2021-10-24 10:16:27,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:16:27,131 INFO L470 AbstractCegarLoop]: Abstraction has 11329 states and 14112 transitions. [2021-10-24 10:16:27,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2021-10-24 10:16:27,132 INFO L276 IsEmpty]: Start isEmpty. Operand 11329 states and 14112 transitions. [2021-10-24 10:16:27,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-10-24 10:16:27,159 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:16:27,160 INFO L512 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 15, 14, 12, 12, 11, 11, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 4, 4, 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] [2021-10-24 10:16:27,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-24 10:16:27,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:16:27,381 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:16:27,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:16:27,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1396739116, now seen corresponding path program 1 times [2021-10-24 10:16:27,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:16:27,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354196387] [2021-10-24 10:16:27,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:16:27,382 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:16:27,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:16:27,383 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:16:27,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-10-24 10:16:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:16:29,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:16:30,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:16:31,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2061 backedges. 1034 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2021-10-24 10:16:31,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:16:32,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2061 backedges. 1034 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2021-10-24 10:16:32,492 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:16:32,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354196387] [2021-10-24 10:16:32,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1354196387] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:16:32,492 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:16:32,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:16:32,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008741670] [2021-10-24 10:16:32,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:16:32,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:16:32,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:16:32,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:16:32,494 INFO L87 Difference]: Start difference. First operand 11329 states and 14112 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2021-10-24 10:16:32,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:16:32,667 INFO L93 Difference]: Finished difference Result 17799 states and 22219 transitions. [2021-10-24 10:16:32,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:16:32,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 434 [2021-10-24 10:16:32,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:16:32,685 INFO L225 Difference]: With dead ends: 17799 [2021-10-24 10:16:32,685 INFO L226 Difference]: Without dead ends: 7732 [2021-10-24 10:16:32,696 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 865 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:16:32,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7732 states. [2021-10-24 10:16:32,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7732 to 7730. [2021-10-24 10:16:32,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 1.2564367964807865) internal successors, (9711), 7729 states have internal predecessors, (9711), 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) [2021-10-24 10:16:32,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 9711 transitions. [2021-10-24 10:16:32,998 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 9711 transitions. Word has length 434 [2021-10-24 10:16:32,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:16:32,998 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 9711 transitions. [2021-10-24 10:16:32,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2021-10-24 10:16:32,999 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 9711 transitions. [2021-10-24 10:16:33,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2021-10-24 10:16:33,022 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:16:33,023 INFO L512 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 19, 18, 17, 15, 15, 14, 14, 13, 13, 12, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:16:33,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-10-24 10:16:33,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:16:33,238 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:16:33,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:16:33,239 INFO L82 PathProgramCache]: Analyzing trace with hash -839302048, now seen corresponding path program 1 times [2021-10-24 10:16:33,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:16:33,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870527669] [2021-10-24 10:16:33,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:16:33,240 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:16:33,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:16:33,242 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:16:33,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-10-24 10:16:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:16:36,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:16:36,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:16:37,541 INFO L134 CoverageAnalysis]: Checked inductivity of 3220 backedges. 1527 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2021-10-24 10:16:37,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:16:38,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3220 backedges. 1527 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2021-10-24 10:16:38,815 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:16:38,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870527669] [2021-10-24 10:16:38,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870527669] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:16:38,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:16:38,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:16:38,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329170681] [2021-10-24 10:16:38,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:16:38,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:16:38,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:16:38,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:16:38,817 INFO L87 Difference]: Start difference. First operand 7730 states and 9711 transitions. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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) [2021-10-24 10:16:39,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:16:39,062 INFO L93 Difference]: Finished difference Result 15781 states and 20041 transitions. [2021-10-24 10:16:39,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:16:39,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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 544 [2021-10-24 10:16:39,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:16:39,072 INFO L225 Difference]: With dead ends: 15781 [2021-10-24 10:16:39,072 INFO L226 Difference]: Without dead ends: 7352 [2021-10-24 10:16:39,078 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1086 GetRequests, 1084 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:16:39,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7352 states. [2021-10-24 10:16:39,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7352 to 7298. [2021-10-24 10:16:39,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7298 states, 7297 states have (on average 1.2420172673701522) internal successors, (9063), 7297 states have internal predecessors, (9063), 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) [2021-10-24 10:16:39,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7298 states to 7298 states and 9063 transitions. [2021-10-24 10:16:39,336 INFO L78 Accepts]: Start accepts. Automaton has 7298 states and 9063 transitions. Word has length 544 [2021-10-24 10:16:39,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:16:39,337 INFO L470 AbstractCegarLoop]: Abstraction has 7298 states and 9063 transitions. [2021-10-24 10:16:39,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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) [2021-10-24 10:16:39,337 INFO L276 IsEmpty]: Start isEmpty. Operand 7298 states and 9063 transitions. [2021-10-24 10:16:39,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2021-10-24 10:16:39,349 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:16:39,351 INFO L512 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 21, 21, 20, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:16:39,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-10-24 10:16:39,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:16:39,571 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:16:39,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:16:39,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1723660819, now seen corresponding path program 1 times [2021-10-24 10:16:39,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:16:39,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30995035] [2021-10-24 10:16:39,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:16:39,573 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:16:39,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:16:39,574 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:16:39,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-10-24 10:16:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:16:42,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:16:42,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:16:43,503 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-10-24 10:16:43,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:16:44,713 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-10-24 10:16:44,713 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:16:44,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30995035] [2021-10-24 10:16:44,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [30995035] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:16:44,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [808203984] [2021-10-24 10:16:44,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:16:44,714 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 10:16:44,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 10:16:44,715 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 10:16:44,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2021-10-24 10:16:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:16:48,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:16:48,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:16:49,921 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-10-24 10:16:49,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:16:51,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-10-24 10:16:51,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [808203984] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:16:51,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719258314] [2021-10-24 10:16:51,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:16:51,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:16:51,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:16:51,114 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:16:51,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-10-24 10:16:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:16:54,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:16:54,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:16:56,005 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-10-24 10:16:56,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:16:57,132 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-10-24 10:16:57,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719258314] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:16:57,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-24 10:16:57,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2021-10-24 10:16:57,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424433501] [2021-10-24 10:16:57,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:16:57,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:16:57,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:16:57,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:16:57,137 INFO L87 Difference]: Start difference. First operand 7298 states and 9063 transitions. Second operand has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 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) [2021-10-24 10:16:57,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:16:57,348 INFO L93 Difference]: Finished difference Result 7511 states and 9333 transitions. [2021-10-24 10:16:57,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:16:57,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 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 619 [2021-10-24 10:16:57,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:16:57,349 INFO L225 Difference]: With dead ends: 7511 [2021-10-24 10:16:57,349 INFO L226 Difference]: Without dead ends: 0 [2021-10-24 10:16:57,353 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3712 GetRequests, 3706 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 21.7ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:16:57,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-24 10:16:57,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-24 10:16:57,354 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) [2021-10-24 10:16:57,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-24 10:16:57,354 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 619 [2021-10-24 10:16:57,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:16:57,355 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-24 10:16:57,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 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) [2021-10-24 10:16:57,355 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-24 10:16:57,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-24 10:16:57,358 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:16:57,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-10-24 10:16:57,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2021-10-24 10:16:57,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2021-10-24 10:16:57,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt [2021-10-24 10:16:57,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-24 10:16:57,971 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:58,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:58,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:58,254 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:58,300 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:58,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:58,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:58,368 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:58,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:58,371 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:58,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:58,386 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:58,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:59,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:59,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:59,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:59,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:59,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:59,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:59,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:59,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:59,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:16:59,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:17:04,021 INFO L853 garLoopResultBuilder]: At program point L135(lines 131 556) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse0 .cse1 .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9))) [2021-10-24 10:17:04,022 INFO L853 garLoopResultBuilder]: At program point L532(lines 95 598) the Hoare annotation is: (let ((.cse4 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse0 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (let ((.cse8 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4448 32))) (.cse20 (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse22 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) (.cse21 (not (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4368 32)))) (.cse26 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv3 32))) (.cse27 (= (_ bv4464 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse25 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4496 32))) (.cse6 (= (_ bv4480 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse24 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4528 32))) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4416 32))) (.cse12 (not .cse0)) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0))) (.cse3 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (.cse13 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse14 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse15 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0))) (.cse16 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse17 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse18 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse19 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse7 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) (.cse10 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse23 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4512 32))) (.cse11 (not .cse4))) (or (and .cse0 (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse1 .cse2 .cse3 .cse4 .cse8 .cse5 .cse7) (and .cse1 .cse3 .cse4 .cse9 .cse5) (and .cse10 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4560 32)) .cse11) (and .cse12 .cse1 .cse10 .cse4 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse7) (and .cse1 .cse10 .cse4 .cse20 .cse7) (and .cse21 .cse1 .cse2 .cse3 .cse4 .cse22 .cse5 .cse7) (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse23 .cse7) (and .cse1 .cse10 .cse24 .cse7) (and .cse1 .cse2 .cse25 .cse3 .cse4 .cse5 .cse7) (and .cse21 .cse10 .cse26 .cse11) (and .cse1 .cse10 .cse4 .cse8 .cse7) (and .cse1 .cse10 .cse23 .cse7) (and .cse1 .cse2 .cse3 .cse4 .cse20 .cse5 .cse7) (and .cse10 .cse4 .cse22) (and .cse21 .cse1 .cse2 .cse3 .cse26 .cse11 .cse7) (and .cse1 .cse2 .cse27 .cse3 .cse4 .cse5 .cse7) (and (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv3 32)) .cse10 .cse11 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4352 32))) (and .cse10 .cse24 .cse11) (and (= (_ bv1 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))) (and .cse1 .cse27 .cse10 .cse4 .cse7) (and .cse1 .cse25 .cse10 .cse4 .cse7) (and .cse1 .cse10 .cse4 .cse6 .cse7) (and .cse1 .cse2 .cse3 .cse4 .cse24 .cse5 .cse7) (and .cse1 .cse10 .cse4 .cse9) (and .cse12 .cse1 .cse2 .cse3 .cse4 .cse13 .cse14 .cse15 .cse5 .cse16 .cse17 .cse18 .cse19 .cse7) (and .cse10 .cse23 .cse11)))) [2021-10-24 10:17:04,022 INFO L860 garLoopResultBuilder]: At program point L599(lines 94 600) the Hoare annotation is: true [2021-10-24 10:17:04,023 INFO L857 garLoopResultBuilder]: For program point L170(lines 170 543) no Hoare annotation was computed. [2021-10-24 10:17:04,023 INFO L857 garLoopResultBuilder]: For program point L137(lines 137 554) no Hoare annotation was computed. [2021-10-24 10:17:04,023 INFO L857 garLoopResultBuilder]: For program point L104(lines 104 565) no Hoare annotation was computed. [2021-10-24 10:17:04,023 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 373) no Hoare annotation was computed. [2021-10-24 10:17:04,023 INFO L857 garLoopResultBuilder]: For program point L369-2(lines 369 373) no Hoare annotation was computed. [2021-10-24 10:17:04,023 INFO L857 garLoopResultBuilder]: For program point L303-1(lines 303 317) no Hoare annotation was computed. [2021-10-24 10:17:04,024 INFO L853 garLoopResultBuilder]: At program point L204(lines 101 566) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) [2021-10-24 10:17:04,024 INFO L853 garLoopResultBuilder]: At program point L171(lines 167 544) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse10 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10))) [2021-10-24 10:17:04,024 INFO L857 garLoopResultBuilder]: For program point L568(lines 568 596) no Hoare annotation was computed. [2021-10-24 10:17:04,024 INFO L857 garLoopResultBuilder]: For program point L569(lines 569 593) no Hoare annotation was computed. [2021-10-24 10:17:04,025 INFO L857 garLoopResultBuilder]: For program point L503-1(lines 199 531) no Hoare annotation was computed. [2021-10-24 10:17:04,025 INFO L857 garLoopResultBuilder]: For program point L338(lines 338 343) no Hoare annotation was computed. [2021-10-24 10:17:04,025 INFO L857 garLoopResultBuilder]: For program point L173(lines 173 542) no Hoare annotation was computed. [2021-10-24 10:17:04,025 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 553) no Hoare annotation was computed. [2021-10-24 10:17:04,025 INFO L857 garLoopResultBuilder]: For program point L107(lines 107 564) no Hoare annotation was computed. [2021-10-24 10:17:04,025 INFO L857 garLoopResultBuilder]: For program point L603(lines 603 607) no Hoare annotation was computed. [2021-10-24 10:17:04,026 INFO L857 garLoopResultBuilder]: For program point L570(lines 570 579) no Hoare annotation was computed. [2021-10-24 10:17:04,026 INFO L857 garLoopResultBuilder]: For program point L603-2(lines 603 607) no Hoare annotation was computed. [2021-10-24 10:17:04,026 INFO L857 garLoopResultBuilder]: For program point L570-2(lines 569 591) no Hoare annotation was computed. [2021-10-24 10:17:04,026 INFO L853 garLoopResultBuilder]: At program point L141(lines 137 554) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse9 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2 .cse3 .cse4 .cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse6 .cse7 .cse8 .cse9) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9))) [2021-10-24 10:17:04,026 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 83) no Hoare annotation was computed. [2021-10-24 10:17:04,027 INFO L857 garLoopResultBuilder]: For program point L307(lines 307 311) no Hoare annotation was computed. [2021-10-24 10:17:04,027 INFO L857 garLoopResultBuilder]: For program point L307-2(lines 305 317) no Hoare annotation was computed. [2021-10-24 10:17:04,027 INFO L857 garLoopResultBuilder]: For program point L572(lines 572 576) no Hoare annotation was computed. [2021-10-24 10:17:04,027 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 445) no Hoare annotation was computed. [2021-10-24 10:17:04,027 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 279) no Hoare annotation was computed. [2021-10-24 10:17:04,027 INFO L857 garLoopResultBuilder]: For program point L209(lines 209 213) no Hoare annotation was computed. [2021-10-24 10:17:04,028 INFO L857 garLoopResultBuilder]: For program point L176(lines 176 541) no Hoare annotation was computed. [2021-10-24 10:17:04,028 INFO L857 garLoopResultBuilder]: For program point L143(lines 143 552) no Hoare annotation was computed. [2021-10-24 10:17:04,028 INFO L857 garLoopResultBuilder]: For program point L209-2(lines 199 531) no Hoare annotation was computed. [2021-10-24 10:17:04,028 INFO L857 garLoopResultBuilder]: For program point L110(lines 110 563) no Hoare annotation was computed. [2021-10-24 10:17:04,028 INFO L857 garLoopResultBuilder]: For program point L474(lines 474 478) no Hoare annotation was computed. [2021-10-24 10:17:04,029 INFO L853 garLoopResultBuilder]: At program point L177(lines 173 542) the Hoare annotation is: (let ((.cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse10 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse8 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse11 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse6 .cse7 (not .cse8) .cse9) (and .cse0 .cse10 .cse1 .cse2 .cse8 .cse3 .cse4 .cse5 .cse6 .cse7 .cse9 .cse11) (and .cse0 .cse10 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse8 .cse3 .cse4 .cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse6 .cse7 .cse9 .cse11))) [2021-10-24 10:17:04,029 INFO L857 garLoopResultBuilder]: For program point L78(lines 78 82) no Hoare annotation was computed. [2021-10-24 10:17:04,029 INFO L857 garLoopResultBuilder]: For program point L78-2(lines 75 83) no Hoare annotation was computed. [2021-10-24 10:17:04,029 INFO L857 garLoopResultBuilder]: For program point L508-1(lines 508 512) no Hoare annotation was computed. [2021-10-24 10:17:04,029 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 413) no Hoare annotation was computed. [2021-10-24 10:17:04,030 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 250) no Hoare annotation was computed. [2021-10-24 10:17:04,030 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 540) no Hoare annotation was computed. [2021-10-24 10:17:04,030 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 551) no Hoare annotation was computed. [2021-10-24 10:17:04,030 INFO L857 garLoopResultBuilder]: For program point L113(lines 113 562) no Hoare annotation was computed. [2021-10-24 10:17:04,030 INFO L853 garLoopResultBuilder]: At program point L147(lines 143 552) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse10 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10))) [2021-10-24 10:17:04,031 INFO L857 garLoopResultBuilder]: For program point L479(lines 479 483) no Hoare annotation was computed. [2021-10-24 10:17:04,031 INFO L857 garLoopResultBuilder]: For program point L479-2(lines 479 483) no Hoare annotation was computed. [2021-10-24 10:17:04,031 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 539) no Hoare annotation was computed. [2021-10-24 10:17:04,031 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 550) no Hoare annotation was computed. [2021-10-24 10:17:04,031 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 561) no Hoare annotation was computed. [2021-10-24 10:17:04,031 INFO L857 garLoopResultBuilder]: For program point L381(lines 381 385) no Hoare annotation was computed. [2021-10-24 10:17:04,032 INFO L857 garLoopResultBuilder]: For program point L348(lines 348 352) no Hoare annotation was computed. [2021-10-24 10:17:04,032 INFO L853 garLoopResultBuilder]: At program point L183(lines 179 540) the Hoare annotation is: (let ((.cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse10 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse8 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse11 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse6 .cse7 (not .cse8) .cse9) (and .cse0 .cse10 .cse1 .cse2 .cse8 .cse3 .cse4 .cse5 .cse6 .cse7 .cse9 .cse11) (and .cse0 .cse10 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse8 .cse3 .cse4 .cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse6 .cse7 .cse9 .cse11))) [2021-10-24 10:17:04,032 INFO L853 garLoopResultBuilder]: At program point L117(lines 113 562) the Hoare annotation is: (and (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) [2021-10-24 10:17:04,032 INFO L853 garLoopResultBuilder]: At program point L349(lines 67 616) the Hoare annotation is: false [2021-10-24 10:17:04,033 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 93) no Hoare annotation was computed. [2021-10-24 10:17:04,033 INFO L860 garLoopResultBuilder]: At program point L614(lines 67 616) the Hoare annotation is: true [2021-10-24 10:17:04,033 INFO L857 garLoopResultBuilder]: For program point L581(lines 581 587) no Hoare annotation was computed. [2021-10-24 10:17:04,033 INFO L857 garLoopResultBuilder]: For program point L515(lines 515 519) no Hoare annotation was computed. [2021-10-24 10:17:04,033 INFO L857 garLoopResultBuilder]: For program point L515-2(lines 515 519) no Hoare annotation was computed. [2021-10-24 10:17:04,033 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-24 10:17:04,034 INFO L857 garLoopResultBuilder]: For program point L284(lines 284 288) no Hoare annotation was computed. [2021-10-24 10:17:04,034 INFO L857 garLoopResultBuilder]: For program point L284-2(lines 199 531) no Hoare annotation was computed. [2021-10-24 10:17:04,034 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 538) no Hoare annotation was computed. [2021-10-24 10:17:04,034 INFO L857 garLoopResultBuilder]: For program point L152(lines 152 549) no Hoare annotation was computed. [2021-10-24 10:17:04,034 INFO L857 garLoopResultBuilder]: For program point L119(lines 119 560) no Hoare annotation was computed. [2021-10-24 10:17:04,034 INFO L857 garLoopResultBuilder]: For program point L86(lines 86 90) no Hoare annotation was computed. [2021-10-24 10:17:04,035 INFO L860 garLoopResultBuilder]: At program point L615(lines 10 617) the Hoare annotation is: true [2021-10-24 10:17:04,035 INFO L857 garLoopResultBuilder]: For program point L450(lines 450 454) no Hoare annotation was computed. [2021-10-24 10:17:04,035 INFO L857 garLoopResultBuilder]: For program point L353(lines 353 357) no Hoare annotation was computed. [2021-10-24 10:17:04,035 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 238) no Hoare annotation was computed. [2021-10-24 10:17:04,035 INFO L857 garLoopResultBuilder]: For program point L188(lines 188 537) no Hoare annotation was computed. [2021-10-24 10:17:04,035 INFO L857 garLoopResultBuilder]: For program point L155(lines 155 548) no Hoare annotation was computed. [2021-10-24 10:17:04,036 INFO L857 garLoopResultBuilder]: For program point L221-2(lines 199 531) no Hoare annotation was computed. [2021-10-24 10:17:04,036 INFO L857 garLoopResultBuilder]: For program point L122(lines 122 559) no Hoare annotation was computed. [2021-10-24 10:17:04,036 INFO L853 garLoopResultBuilder]: At program point L189(lines 185 538) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse12 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse10 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse11 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse12 .cse2 .cse4 .cse5 .cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse7 .cse8 (not .cse3) .cse10) (and .cse0 .cse1 .cse12 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11))) [2021-10-24 10:17:04,036 INFO L853 garLoopResultBuilder]: At program point L123(lines 119 560) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse10 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse11 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse2 .cse4 .cse5 .cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse7 (= (_ bv1 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse8 .cse10) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11))) [2021-10-24 10:17:04,037 INFO L857 garLoopResultBuilder]: For program point L487-1(lines 487 499) no Hoare annotation was computed. [2021-10-24 10:17:04,037 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 425) no Hoare annotation was computed. [2021-10-24 10:17:04,037 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-24 10:17:04,037 INFO L857 garLoopResultBuilder]: For program point L223(lines 223 228) no Hoare annotation was computed. [2021-10-24 10:17:04,037 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 536) no Hoare annotation was computed. [2021-10-24 10:17:04,037 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 547) no Hoare annotation was computed. [2021-10-24 10:17:04,037 INFO L857 garLoopResultBuilder]: For program point L125(lines 125 558) no Hoare annotation was computed. [2021-10-24 10:17:04,038 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 526) no Hoare annotation was computed. [2021-10-24 10:17:04,038 INFO L853 garLoopResultBuilder]: At program point L192(lines 191 536) the Hoare annotation is: (let ((.cse0 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse4 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) (.cse5 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4352 32)))) (or (and .cse0 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse1 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse3 .cse4) (and (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv3 32)) .cse5 (not .cse1) .cse3))) [2021-10-24 10:17:04,038 INFO L853 garLoopResultBuilder]: At program point L159(lines 149 550) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse10 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10))) [2021-10-24 10:17:04,038 INFO L857 garLoopResultBuilder]: For program point L490(lines 490 495) no Hoare annotation was computed. [2021-10-24 10:17:04,039 INFO L857 garLoopResultBuilder]: For program point L457(lines 457 468) no Hoare annotation was computed. [2021-10-24 10:17:04,039 INFO L857 garLoopResultBuilder]: For program point L457-1(lines 457 468) no Hoare annotation was computed. [2021-10-24 10:17:04,039 INFO L857 garLoopResultBuilder]: For program point L325(lines 325 329) no Hoare annotation was computed. [2021-10-24 10:17:04,039 INFO L857 garLoopResultBuilder]: For program point L259(lines 259 267) no Hoare annotation was computed. [2021-10-24 10:17:04,039 INFO L857 garLoopResultBuilder]: For program point L325-2(lines 199 531) no Hoare annotation was computed. [2021-10-24 10:17:04,039 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-24 10:17:04,039 INFO L857 garLoopResultBuilder]: For program point L392(lines 392 396) no Hoare annotation was computed. [2021-10-24 10:17:04,040 INFO L857 garLoopResultBuilder]: For program point L194(lines 194 535) no Hoare annotation was computed. [2021-10-24 10:17:04,040 INFO L857 garLoopResultBuilder]: For program point L161(lines 161 546) no Hoare annotation was computed. [2021-10-24 10:17:04,040 INFO L857 garLoopResultBuilder]: For program point L128(lines 128 557) no Hoare annotation was computed. [2021-10-24 10:17:04,040 INFO L857 garLoopResultBuilder]: For program point L95-1(lines 67 616) no Hoare annotation was computed. [2021-10-24 10:17:04,040 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 465) no Hoare annotation was computed. [2021-10-24 10:17:04,040 INFO L857 garLoopResultBuilder]: For program point L294(lines 294 298) no Hoare annotation was computed. [2021-10-24 10:17:04,041 INFO L857 garLoopResultBuilder]: For program point L294-2(lines 294 298) no Hoare annotation was computed. [2021-10-24 10:17:04,041 INFO L860 garLoopResultBuilder]: At program point L195(lines 194 535) the Hoare annotation is: true [2021-10-24 10:17:04,041 INFO L853 garLoopResultBuilder]: At program point L129(lines 125 558) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and .cse0 (not (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4368 32))) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2 .cse3 .cse4 .cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse6 .cse7 .cse8 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8))) [2021-10-24 10:17:04,041 INFO L857 garLoopResultBuilder]: For program point L96(line 96) no Hoare annotation was computed. [2021-10-24 10:17:04,041 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 266) no Hoare annotation was computed. [2021-10-24 10:17:04,042 INFO L857 garLoopResultBuilder]: For program point L229(lines 229 234) no Hoare annotation was computed. [2021-10-24 10:17:04,042 INFO L857 garLoopResultBuilder]: For program point L262-2(lines 199 531) no Hoare annotation was computed. [2021-10-24 10:17:04,042 INFO L860 garLoopResultBuilder]: At program point L626(lines 618 628) the Hoare annotation is: true [2021-10-24 10:17:04,042 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 545) no Hoare annotation was computed. [2021-10-24 10:17:04,042 INFO L857 garLoopResultBuilder]: For program point L131(lines 131 556) no Hoare annotation was computed. [2021-10-24 10:17:04,042 INFO L857 garLoopResultBuilder]: For program point L98(lines 98 567) no Hoare annotation was computed. [2021-10-24 10:17:04,042 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-24 10:17:04,043 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 610) no Hoare annotation was computed. [2021-10-24 10:17:04,043 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 433) no Hoare annotation was computed. [2021-10-24 10:17:04,043 INFO L857 garLoopResultBuilder]: For program point L429-2(lines 199 531) no Hoare annotation was computed. [2021-10-24 10:17:04,043 INFO L860 garLoopResultBuilder]: At program point L198(lines 197 534) the Hoare annotation is: true [2021-10-24 10:17:04,043 INFO L853 garLoopResultBuilder]: At program point L165(lines 161 546) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse10 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10))) [2021-10-24 10:17:04,044 INFO L853 garLoopResultBuilder]: At program point L99(lines 98 567) the Hoare annotation is: (and (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) [2021-10-24 10:17:04,044 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 368) no Hoare annotation was computed. [2021-10-24 10:17:04,044 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 403) no Hoare annotation was computed. [2021-10-24 10:17:04,044 INFO L857 garLoopResultBuilder]: For program point L398-2(lines 398 403) no Hoare annotation was computed. [2021-10-24 10:17:04,044 INFO L857 garLoopResultBuilder]: For program point L167(lines 167 544) no Hoare annotation was computed. [2021-10-24 10:17:04,044 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 555) no Hoare annotation was computed. [2021-10-24 10:17:04,045 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 566) no Hoare annotation was computed. [2021-10-24 10:17:04,049 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:17:04,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:17:04 BoogieIcfgContainer [2021-10-24 10:17:04,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:17:04,116 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:17:04,116 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:17:04,116 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:17:04,117 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:15:18" (3/4) ... [2021-10-24 10:17:04,120 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-24 10:17:04,147 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-24 10:17:04,148 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-24 10:17:04,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 10:17:04,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 10:17:04,238 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:17:04,238 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:17:04,240 INFO L168 Benchmark]: Toolchain (without parser) took 107707.23 ms. Allocated memory was 56.6 MB in the beginning and 740.3 MB in the end (delta: 683.7 MB). Free memory was 34.0 MB in the beginning and 327.5 MB in the end (delta: -293.5 MB). Peak memory consumption was 393.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:17:04,240 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 56.6 MB. Free memory is still 37.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:17:04,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 576.65 ms. Allocated memory is still 56.6 MB. Free memory was 33.8 MB in the beginning and 34.8 MB in the end (delta: -986.5 kB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:17:04,241 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.53 ms. Allocated memory is still 56.6 MB. Free memory was 34.6 MB in the beginning and 32.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:17:04,241 INFO L168 Benchmark]: Boogie Preprocessor took 87.35 ms. Allocated memory is still 56.6 MB. Free memory was 32.2 MB in the beginning and 30.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:17:04,242 INFO L168 Benchmark]: RCFGBuilder took 925.78 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 30.1 MB in the beginning and 40.5 MB in the end (delta: -10.4 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2021-10-24 10:17:04,242 INFO L168 Benchmark]: TraceAbstraction took 105888.51 ms. Allocated memory was 77.6 MB in the beginning and 740.3 MB in the end (delta: 662.7 MB). Free memory was 39.9 MB in the beginning and 338.0 MB in the end (delta: -298.0 MB). Peak memory consumption was 586.8 MB. Max. memory is 16.1 GB. [2021-10-24 10:17:04,243 INFO L168 Benchmark]: Witness Printer took 122.32 ms. Allocated memory is still 740.3 MB. Free memory was 338.0 MB in the beginning and 327.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:17:04,245 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 56.6 MB. Free memory is still 37.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 576.65 ms. Allocated memory is still 56.6 MB. Free memory was 33.8 MB in the beginning and 34.8 MB in the end (delta: -986.5 kB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 97.53 ms. Allocated memory is still 56.6 MB. Free memory was 34.6 MB in the beginning and 32.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 87.35 ms. Allocated memory is still 56.6 MB. Free memory was 32.2 MB in the beginning and 30.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 925.78 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 30.1 MB in the beginning and 40.5 MB in the end (delta: -10.4 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 105888.51 ms. Allocated memory was 77.6 MB in the beginning and 740.3 MB in the end (delta: 662.7 MB). Free memory was 39.9 MB in the beginning and 338.0 MB in the end (delta: -298.0 MB). Peak memory consumption was 586.8 MB. Max. memory is 16.1 GB. * Witness Printer took 122.32 ms. Allocated memory is still 740.3 MB. Free memory was 338.0 MB in the beginning and 327.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 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: 610]: 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, 125 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 105723.9ms, OverallIterations: 25, TraceHistogramMax: 22, EmptinessCheckTime: 250.7ms, AutomataDifference: 6929.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 6058.4ms, InitialAbstractionConstructionTime: 16.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4650 SDtfs, 3875 SDslu, 4055 SDs, 0 SdLazy, 3761 SolverSat, 658 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3282.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16086 GetRequests, 16023 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 291.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11329occurred in iteration=22, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 3222.9ms AutomataMinimizationTime, 25 MinimizatonAttempts, 8253 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 23 LocationsWithAnnotation, 23 PreInvPairs, 281 NumberOfFragments, 1940 HoareAnnotationTreeSize, 23 FomulaSimplifications, 19573 FormulaSimplificationTreeSizeReduction, 1536.3ms HoareSimplificationTime, 23 FomulaSimplificationsInter, 14684 FormulaSimplificationTreeSizeReductionInter, 4504.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 681.8ms SsaConstructionTime, 3036.8ms SatisfiabilityAnalysisTime, 38278.5ms InterpolantComputationTime, 8066 NumberOfCodeBlocks, 8066 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 16068 ConstructedInterpolants, 0 QuantifiedInterpolants, 22634 SizeOfPredicates, 14 NumberOfNonLiveVariables, 10823 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 64 InterpolantComputations, 44 PerfectInterpolantSequences, 70776/71144 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: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__hit == 0bv32)) && !(s__state == 4099bv32)) || (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X)) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: (((((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || ((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__hit == 0bv32)) && !(s__state == 4099bv32))) || ((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: ((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) || (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: (((((((0bv32 == blastFlag && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32) - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: (((((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((!(s__state == 4368bv32) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && 1bv32 == blastFlag) && !(s__state == 16384bv32)) && !(s__state == 4099bv32))) || ((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((s__state == 4368bv32 && 0bv32 == blastFlag) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && 4480bv32 == s__state) && 65535bv32 == ag_X)) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && s__state == 4448bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || ((((61087bv32 == ag_Y && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && s__state == 4416bv32) && !(5bv32 == blastFlag))) || ((2bv32 == blastFlag && s__state == 4560bv32) && !(s__hit == 0bv32))) || (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X)) || ((((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__hit == 0bv32) && 4432bv32 == s__state) && 65535bv32 == ag_X)) || (((((((!(s__s3__tmp__next_state___0 == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && s__state == 4400bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && s__state == 4512bv32) && 65535bv32 == ag_X)) || (((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__state == 4528bv32) && 65535bv32 == ag_X)) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && s__state == 4496bv32) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || (((!(s__s3__tmp__next_state___0 == 4368bv32) && 2bv32 == blastFlag) && s__state == 3bv32) && !(s__hit == 0bv32))) || ((((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__hit == 0bv32) && s__state == 4448bv32) && 65535bv32 == ag_X)) || (((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__state == 4512bv32) && 65535bv32 == ag_X)) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && 4432bv32 == s__state) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || ((2bv32 == blastFlag && s__hit == 0bv32) && s__state == 4400bv32)) || ((((((!(s__s3__tmp__next_state___0 == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__state == 3bv32) && !(s__hit == 0bv32)) && 65535bv32 == ag_X)) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 4464bv32 == s__state) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || (((s__s3__tmp__next_state___0 == 3bv32 && 2bv32 == blastFlag) && !(s__hit == 0bv32)) && s__state == 4352bv32)) || ((2bv32 == blastFlag && s__state == 4528bv32) && !(s__hit == 0bv32))) || (1bv32 == blastFlag && s__state == 4384bv32)) || ((((61087bv32 == ag_Y && 4464bv32 == s__state) && 2bv32 == blastFlag) && s__hit == 0bv32) && 65535bv32 == ag_X)) || ((((61087bv32 == ag_Y && s__state == 4496bv32) && 2bv32 == blastFlag) && s__hit == 0bv32) && 65535bv32 == ag_X)) || ((((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__hit == 0bv32) && 4480bv32 == s__state) && 65535bv32 == ag_X)) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && s__state == 4528bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || (((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__hit == 0bv32) && s__state == 4416bv32)) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X)) || ((2bv32 == blastFlag && s__state == 4512bv32) && !(s__hit == 0bv32)) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: 0bv32 == blastFlag && s__state == 12292bv32 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (((((((!(s__state == 4368bv32) && 0bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32) - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: ((((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && s__s3__tmp__next_state___0 == 4560bv32) && s__state == 4352bv32) && 65535bv32 == ag_X) || (((((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__hit == 0bv32) && s__s3__tmp__next_state___0 == 4560bv32) && s__state == 4352bv32) && 65535bv32 == ag_X)) || (((s__s3__tmp__next_state___0 == 3bv32 && 2bv32 == blastFlag) && !(s__hit == 0bv32)) && s__state == 4352bv32) - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: ((((((((((((((!(s__state == 4368bv32) && !(s__s3__tmp__next_state___0 == 4368bv32)) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: ((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || ((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__hit == 0bv32)) && !(s__state == 4099bv32)) || (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X)) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) RESULT: Ultimate proved your program to be correct! [2021-10-24 10:17:04,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aa409b6-27f1-4ad0-83a1-e68c2ec8af42/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...