./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label27.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label27.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7fef5be9c00e41bbb50129de04e8f2f531369ff3 ....................................................................................................................................................................................................................................................................................................................................................... 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_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label27.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7fef5be9c00e41bbb50129de04e8f2f531369ff3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:54:27,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:54:27,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:54:27,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:54:27,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:54:27,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:54:27,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:54:27,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:54:27,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:54:27,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:54:27,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:54:27,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:54:27,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:54:27,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:54:27,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:54:27,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:54:27,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:54:27,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:54:27,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:54:27,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:54:27,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:54:27,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:54:27,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:54:27,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:54:27,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:54:27,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:54:27,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:54:27,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:54:27,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:54:27,326 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:54:27,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:54:27,327 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:54:27,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:54:27,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:54:27,330 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:54:27,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:54:27,331 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:54:27,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:54:27,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:54:27,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:54:27,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:54:27,334 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:54:27,362 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:54:27,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:54:27,363 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:54:27,363 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:54:27,363 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:54:27,363 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:54:27,363 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:54:27,364 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:54:27,364 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:54:27,364 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:54:27,364 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:54:27,364 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:54:27,365 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:54:27,365 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:54:27,365 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:54:27,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:54:27,366 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:54:27,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:54:27,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:54:27,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:54:27,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:54:27,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:54:27,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:54:27,367 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:54:27,367 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:54:27,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:54:27,367 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:54:27,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:54:27,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:54:27,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:54:27,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:54:27,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:54:27,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:54:27,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:54:27,369 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:54:27,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:54:27,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:54:27,370 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:54:27,370 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:54:27,370 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_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7fef5be9c00e41bbb50129de04e8f2f531369ff3 [2021-10-13 07:54:27,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:54:27,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:54:27,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:54:27,696 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:54:27,697 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:54:27,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem11_label27.c [2021-10-13 07:54:27,755 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/data/80e625e7f/79af74451e564140a6996c0e4b6b0383/FLAGaebaa8aa9 [2021-10-13 07:54:28,348 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:54:28,349 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/sv-benchmarks/c/eca-rers2012/Problem11_label27.c [2021-10-13 07:54:28,368 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/data/80e625e7f/79af74451e564140a6996c0e4b6b0383/FLAGaebaa8aa9 [2021-10-13 07:54:28,585 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/data/80e625e7f/79af74451e564140a6996c0e4b6b0383 [2021-10-13 07:54:28,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:54:28,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:54:28,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:54:28,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:54:28,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:54:28,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:54:28" (1/1) ... [2021-10-13 07:54:28,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c4eaab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:28, skipping insertion in model container [2021-10-13 07:54:28,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:54:28" (1/1) ... [2021-10-13 07:54:28,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:54:28,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:54:28,921 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_e09d14a3-aae5-406d-a797-c6891cbb6b52/sv-benchmarks/c/eca-rers2012/Problem11_label27.c[6152,6165] [2021-10-13 07:54:29,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:54:29,234 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:54:29,261 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_e09d14a3-aae5-406d-a797-c6891cbb6b52/sv-benchmarks/c/eca-rers2012/Problem11_label27.c[6152,6165] [2021-10-13 07:54:29,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:54:29,427 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:54:29,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:29 WrapperNode [2021-10-13 07:54:29,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:54:29,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:54:29,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:54:29,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:54:29,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:29" (1/1) ... [2021-10-13 07:54:29,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:29" (1/1) ... [2021-10-13 07:54:29,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:54:29,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:54:29,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:54:29,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:54:29,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:29" (1/1) ... [2021-10-13 07:54:29,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:29" (1/1) ... [2021-10-13 07:54:29,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:29" (1/1) ... [2021-10-13 07:54:29,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:29" (1/1) ... [2021-10-13 07:54:29,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:29" (1/1) ... [2021-10-13 07:54:29,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:29" (1/1) ... [2021-10-13 07:54:29,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:29" (1/1) ... [2021-10-13 07:54:29,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:54:29,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:54:29,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:54:29,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:54:29,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:29" (1/1) ... [2021-10-13 07:54:29,730 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:54:29,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:54:29,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:54:29,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:54:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:54:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:54:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:54:29,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:54:51,850 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:54:51,850 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:54:51,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:54:51 BoogieIcfgContainer [2021-10-13 07:54:51,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:54:51,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:54:51,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:54:51,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:54:51,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:54:28" (1/3) ... [2021-10-13 07:54:51,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb78285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:54:51, skipping insertion in model container [2021-10-13 07:54:51,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:29" (2/3) ... [2021-10-13 07:54:51,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb78285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:54:51, skipping insertion in model container [2021-10-13 07:54:51,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:54:51" (3/3) ... [2021-10-13 07:54:51,861 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label27.c [2021-10-13 07:54:51,866 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:54:51,867 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:54:51,915 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:54:51,921 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:54:51,921 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:54:51,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:54:51,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 07:54:51,939 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:54:51,939 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 07:54:51,940 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:54:51,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:54:51,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1190296738, now seen corresponding path program 1 times [2021-10-13 07:54:51,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:54:51,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931359520] [2021-10-13 07:54:51,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:54:51,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:54:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:54:52,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:54:52,156 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:54:52,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931359520] [2021-10-13 07:54:52,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931359520] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:54:52,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:54:52,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:54:52,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792010268] [2021-10-13 07:54:52,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:54:52,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:54:52,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:54:52,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:54:52,179 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:54:52,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:54:52,284 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-13 07:54:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:54:52,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-13 07:54:52,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:54:52,293 INFO L225 Difference]: With dead ends: 23 [2021-10-13 07:54:52,293 INFO L226 Difference]: Without dead ends: 11 [2021-10-13 07:54:52,296 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:54:52,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-13 07:54:52,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-13 07:54:52,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:54:52,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-13 07:54:52,324 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-13 07:54:52,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:54:52,325 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-13 07:54:52,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:54:52,325 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-13 07:54:52,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:54:52,326 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:54:52,326 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-13 07:54:52,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:54:52,327 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:54:52,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:54:52,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1355994558, now seen corresponding path program 1 times [2021-10-13 07:54:52,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:54:52,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3423253] [2021-10-13 07:54:52,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:54:52,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:54:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:54:53,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:54:53,076 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:54:53,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3423253] [2021-10-13 07:54:53,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3423253] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:54:53,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208889244] [2021-10-13 07:54:53,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:54:53,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:54:53,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:54:53,080 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:54:53,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:54:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:54:53,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 07:54:53,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:54:56,972 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:54:56,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:00:05,238 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-13 08:00:05,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2101368566] [2021-10-13 08:00:05,264 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-13 08:00:05,265 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 08:00:05,270 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 08:00:05,276 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 08:00:05,277 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 08:00:05,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:00:05,313 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 08:00:05,314 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:00:05,316 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 08:00:05,317 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 08:00:05,318 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:00:05,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 08:00:05,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-13 08:00:05,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 08:00:05,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 08:00:05,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 08:00:05,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-13 08:00:05,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:00:05,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 08:00:05,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:00:05,384 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 08:00:05,385 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 08:00:05,386 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:00:05,419 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:00:05,425 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:00:05,427 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-13 08:00:05,427 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 08:00:05,427 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:155, output treesize:158 [2021-10-13 08:00:05,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 08:00:05,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:00:05,629 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_10| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 08:00:05,633 INFO L168 Benchmark]: Toolchain (without parser) took 337043.50 ms. Allocated memory was 104.9 MB in the beginning and 3.0 GB in the end (delta: 2.9 GB). Free memory was 82.7 MB in the beginning and 1.8 GB in the end (delta: -1.8 GB). Peak memory consumption was 1.1 GB. Max. memory is 16.1 GB. [2021-10-13 08:00:05,633 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 104.9 MB. Free memory is still 80.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:00:05,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 838.65 ms. Allocated memory was 104.9 MB in the beginning and 146.8 MB in the end (delta: 41.9 MB). Free memory was 82.5 MB in the beginning and 117.1 MB in the end (delta: -34.7 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. [2021-10-13 08:00:05,635 INFO L168 Benchmark]: Boogie Procedure Inliner took 154.67 ms. Allocated memory is still 146.8 MB. Free memory was 117.1 MB in the beginning and 99.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 08:00:05,635 INFO L168 Benchmark]: Boogie Preprocessor took 135.27 ms. Allocated memory is still 146.8 MB. Free memory was 99.9 MB in the beginning and 90.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 08:00:05,636 INFO L168 Benchmark]: RCFGBuilder took 22131.54 ms. Allocated memory was 146.8 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 90.8 MB in the beginning and 1.1 GB in the end (delta: -991.8 MB). Peak memory consumption was 356.3 MB. Max. memory is 16.1 GB. [2021-10-13 08:00:05,637 INFO L168 Benchmark]: TraceAbstraction took 313777.42 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.5 GB). Free memory was 1.1 GB in the beginning and 1.8 GB in the end (delta: -752.4 MB). Peak memory consumption was 721.9 MB. Max. memory is 16.1 GB. [2021-10-13 08:00:05,641 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 104.9 MB. Free memory is still 80.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 838.65 ms. Allocated memory was 104.9 MB in the beginning and 146.8 MB in the end (delta: 41.9 MB). Free memory was 82.5 MB in the beginning and 117.1 MB in the end (delta: -34.7 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 154.67 ms. Allocated memory is still 146.8 MB. Free memory was 117.1 MB in the beginning and 99.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 135.27 ms. Allocated memory is still 146.8 MB. Free memory was 99.9 MB in the beginning and 90.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 22131.54 ms. Allocated memory was 146.8 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 90.8 MB in the beginning and 1.1 GB in the end (delta: -991.8 MB). Peak memory consumption was 356.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 313777.42 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.5 GB). Free memory was 1.1 GB in the beginning and 1.8 GB in the end (delta: -752.4 MB). Peak memory consumption was 721.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_10| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_10|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 08:00:05,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 08:00:08,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:00:08,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:00:08,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:00:08,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:00:08,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:00:08,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:00:08,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:00:08,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:00:08,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:00:08,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:00:08,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:00:08,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:00:08,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:00:08,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:00:08,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:00:08,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:00:08,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:00:08,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:00:08,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:00:08,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:00:08,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:00:08,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:00:08,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:00:08,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:00:08,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:00:08,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:00:08,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:00:08,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:00:08,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:00:08,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:00:08,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:00:08,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:00:08,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:00:08,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:00:08,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:00:08,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:00:08,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:00:08,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:00:08,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:00:08,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:00:08,151 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 08:00:08,200 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:00:08,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:00:08,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:00:08,201 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:00:08,202 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:00:08,202 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:00:08,202 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:00:08,202 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:00:08,203 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:00:08,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:00:08,205 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:00:08,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:00:08,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:00:08,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 08:00:08,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:00:08,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 08:00:08,206 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:00:08,207 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 08:00:08,207 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 08:00:08,207 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:00:08,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 08:00:08,207 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:00:08,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 08:00:08,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:00:08,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 08:00:08,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:00:08,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:00:08,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:00:08,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:00:08,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 08:00:08,209 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 08:00:08,210 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 08:00:08,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 08:00:08,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:00:08,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:00:08,211 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_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7fef5be9c00e41bbb50129de04e8f2f531369ff3 [2021-10-13 08:00:08,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:00:08,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:00:08,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:00:08,612 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:00:08,616 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:00:08,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem11_label27.c [2021-10-13 08:00:08,688 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/data/abb1dbd7e/fe08507cc6d74aff89ace222ad5d623e/FLAG658405ba2 [2021-10-13 08:00:09,330 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:00:09,331 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/sv-benchmarks/c/eca-rers2012/Problem11_label27.c [2021-10-13 08:00:09,345 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/data/abb1dbd7e/fe08507cc6d74aff89ace222ad5d623e/FLAG658405ba2 [2021-10-13 08:00:09,537 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/data/abb1dbd7e/fe08507cc6d74aff89ace222ad5d623e [2021-10-13 08:00:09,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:00:09,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:00:09,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:00:09,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:00:09,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:00:09,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:00:09" (1/1) ... [2021-10-13 08:00:09,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@386adc93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:00:09, skipping insertion in model container [2021-10-13 08:00:09,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:00:09" (1/1) ... [2021-10-13 08:00:09,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:00:09,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:00:09,915 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_e09d14a3-aae5-406d-a797-c6891cbb6b52/sv-benchmarks/c/eca-rers2012/Problem11_label27.c[6152,6165] [2021-10-13 08:00:10,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:00:10,312 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 08:00:10,356 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_e09d14a3-aae5-406d-a797-c6891cbb6b52/sv-benchmarks/c/eca-rers2012/Problem11_label27.c[6152,6165] [2021-10-13 08:00:10,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:00:10,542 INFO L208 MainTranslator]: Completed translation [2021-10-13 08:00:10,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:00:10 WrapperNode [2021-10-13 08:00:10,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:00:10,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 08:00:10,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 08:00:10,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 08:00:10,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:00:10" (1/1) ... [2021-10-13 08:00:10,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:00:10" (1/1) ... [2021-10-13 08:00:10,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 08:00:10,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 08:00:10,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 08:00:10,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 08:00:10,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:00:10" (1/1) ... [2021-10-13 08:00:10,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:00:10" (1/1) ... [2021-10-13 08:00:10,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:00:10" (1/1) ... [2021-10-13 08:00:10,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:00:10" (1/1) ... [2021-10-13 08:00:10,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:00:10" (1/1) ... [2021-10-13 08:00:10,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:00:10" (1/1) ... [2021-10-13 08:00:10,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:00:10" (1/1) ... [2021-10-13 08:00:10,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 08:00:10,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 08:00:10,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 08:00:10,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 08:00:10,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:00:10" (1/1) ... [2021-10-13 08:00:10,852 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:00:10,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:00:10,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 08:00:10,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 08:00:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 08:00:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 08:00:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 08:00:10,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 08:00:18,239 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 08:00:18,239 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 08:00:18,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:00:18 BoogieIcfgContainer [2021-10-13 08:00:18,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 08:00:18,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 08:00:18,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 08:00:18,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 08:00:18,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:00:09" (1/3) ... [2021-10-13 08:00:18,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d27425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:00:18, skipping insertion in model container [2021-10-13 08:00:18,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:00:10" (2/3) ... [2021-10-13 08:00:18,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d27425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:00:18, skipping insertion in model container [2021-10-13 08:00:18,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:00:18" (3/3) ... [2021-10-13 08:00:18,249 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label27.c [2021-10-13 08:00:18,254 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 08:00:18,254 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 08:00:18,315 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 08:00:18,323 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 08:00:18,323 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 08:00:18,353 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:18,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-13 08:00:18,363 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:00:18,363 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:00:18,364 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:00:18,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:00:18,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1824112922, now seen corresponding path program 1 times [2021-10-13 08:00:18,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:00:18,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389448875] [2021-10-13 08:00:18,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:00:18,386 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:00:18,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:00:18,392 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:00:18,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 08:00:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:00:18,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:00:18,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:00:18,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:18,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:00:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:19,134 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:00:19,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389448875] [2021-10-13 08:00:19,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389448875] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:00:19,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:00:19,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 08:00:19,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068081952] [2021-10-13 08:00:19,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:00:19,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:00:19,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:00:19,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:00:19,161 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:28,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:00:28,309 INFO L93 Difference]: Finished difference Result 968 states and 1740 transitions. [2021-10-13 08:00:28,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:00:28,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 42 [2021-10-13 08:00:28,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:00:28,335 INFO L225 Difference]: With dead ends: 968 [2021-10-13 08:00:28,335 INFO L226 Difference]: Without dead ends: 602 [2021-10-13 08:00:28,339 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:00:28,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2021-10-13 08:00:28,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 596. [2021-10-13 08:00:28,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 595 states have (on average 1.3932773109243697) internal successors, (829), 595 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:28,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 829 transitions. [2021-10-13 08:00:28,414 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 829 transitions. Word has length 42 [2021-10-13 08:00:28,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:00:28,414 INFO L470 AbstractCegarLoop]: Abstraction has 596 states and 829 transitions. [2021-10-13 08:00:28,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:28,415 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 829 transitions. [2021-10-13 08:00:28,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-10-13 08:00:28,420 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:00:28,421 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:00:28,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 08:00:28,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:00:28,629 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:00:28,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:00:28,630 INFO L82 PathProgramCache]: Analyzing trace with hash -931056718, now seen corresponding path program 1 times [2021-10-13 08:00:28,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:00:28,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1942826121] [2021-10-13 08:00:28,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:00:28,631 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:00:28,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:00:28,643 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:00:28,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 08:00:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:00:28,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:00:28,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:00:29,265 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:29,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:00:29,687 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:29,687 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:00:29,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1942826121] [2021-10-13 08:00:29,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1942826121] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:00:29,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:00:29,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 08:00:29,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507501411] [2021-10-13 08:00:29,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:00:29,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:00:29,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:00:29,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:00:29,691 INFO L87 Difference]: Start difference. First operand 596 states and 829 transitions. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:40,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:00:40,746 INFO L93 Difference]: Finished difference Result 2315 states and 3231 transitions. [2021-10-13 08:00:40,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:00:40,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 110 [2021-10-13 08:00:40,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:00:40,764 INFO L225 Difference]: With dead ends: 2315 [2021-10-13 08:00:40,764 INFO L226 Difference]: Without dead ends: 1721 [2021-10-13 08:00:40,767 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:00:40,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2021-10-13 08:00:40,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1705. [2021-10-13 08:00:40,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1704 states have (on average 1.3139671361502347) internal successors, (2239), 1704 states have internal predecessors, (2239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:40,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2239 transitions. [2021-10-13 08:00:40,828 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2239 transitions. Word has length 110 [2021-10-13 08:00:40,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:00:40,828 INFO L470 AbstractCegarLoop]: Abstraction has 1705 states and 2239 transitions. [2021-10-13 08:00:40,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:40,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2239 transitions. [2021-10-13 08:00:40,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-10-13 08:00:40,834 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:00:40,834 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:00:40,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-13 08:00:41,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:00:41,047 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:00:41,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:00:41,047 INFO L82 PathProgramCache]: Analyzing trace with hash -124809809, now seen corresponding path program 1 times [2021-10-13 08:00:41,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:00:41,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709653832] [2021-10-13 08:00:41,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:00:41,050 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:00:41,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:00:41,053 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:00:41,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 08:00:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:00:41,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:00:41,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:00:41,748 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:41,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:00:42,182 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:42,183 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:00:42,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709653832] [2021-10-13 08:00:42,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709653832] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:00:42,183 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:00:42,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 08:00:42,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062727632] [2021-10-13 08:00:42,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:00:42,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:00:42,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:00:42,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:00:42,186 INFO L87 Difference]: Start difference. First operand 1705 states and 2239 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:00,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:01:00,720 INFO L93 Difference]: Finished difference Result 4701 states and 6398 transitions. [2021-10-13 08:01:00,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:01:00,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 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 113 [2021-10-13 08:01:00,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:01:00,741 INFO L225 Difference]: With dead ends: 4701 [2021-10-13 08:01:00,742 INFO L226 Difference]: Without dead ends: 2998 [2021-10-13 08:01:00,744 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:01:00,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2021-10-13 08:01:00,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2814. [2021-10-13 08:01:00,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 2813 states have (on average 1.2328474937788838) internal successors, (3468), 2813 states have internal predecessors, (3468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:00,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 3468 transitions. [2021-10-13 08:01:00,812 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 3468 transitions. Word has length 113 [2021-10-13 08:01:00,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:01:00,813 INFO L470 AbstractCegarLoop]: Abstraction has 2814 states and 3468 transitions. [2021-10-13 08:01:00,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:00,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 3468 transitions. [2021-10-13 08:01:00,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-10-13 08:01:00,817 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:01:00,818 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:01:00,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 08:01:01,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:01:01,033 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:01:01,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:01:01,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1645744975, now seen corresponding path program 1 times [2021-10-13 08:01:01,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:01:01,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [996626985] [2021-10-13 08:01:01,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:01:01,037 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:01:01,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:01:01,038 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:01:01,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 08:01:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:01:01,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 08:01:01,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:01:02,040 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:02,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:01:02,720 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:02,720 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:01:02,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [996626985] [2021-10-13 08:01:02,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [996626985] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 08:01:02,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 08:01:02,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 08:01:02,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158626190] [2021-10-13 08:01:02,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:01:02,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:01:02,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:01:02,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:01:02,723 INFO L87 Difference]: Start difference. First operand 2814 states and 3468 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 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) [2021-10-13 08:01:20,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:01:20,573 INFO L93 Difference]: Finished difference Result 6916 states and 8688 transitions. [2021-10-13 08:01:20,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:01:20,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 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) Word has length 169 [2021-10-13 08:01:20,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:01:20,595 INFO L225 Difference]: With dead ends: 6916 [2021-10-13 08:01:20,596 INFO L226 Difference]: Without dead ends: 4288 [2021-10-13 08:01:20,599 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.0ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:01:20,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4288 states. [2021-10-13 08:01:20,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4288 to 4104. [2021-10-13 08:01:20,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4104 states, 4103 states have (on average 1.207652936875457) internal successors, (4955), 4103 states have internal predecessors, (4955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:20,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4104 states to 4104 states and 4955 transitions. [2021-10-13 08:01:20,694 INFO L78 Accepts]: Start accepts. Automaton has 4104 states and 4955 transitions. Word has length 169 [2021-10-13 08:01:20,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:01:20,695 INFO L470 AbstractCegarLoop]: Abstraction has 4104 states and 4955 transitions. [2021-10-13 08:01:20,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 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) [2021-10-13 08:01:20,696 INFO L276 IsEmpty]: Start isEmpty. Operand 4104 states and 4955 transitions. [2021-10-13 08:01:20,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-10-13 08:01:20,701 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:01:20,701 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:01:20,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-13 08:01:20,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:01:20,920 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:01:20,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:01:20,922 INFO L82 PathProgramCache]: Analyzing trace with hash 990129688, now seen corresponding path program 1 times [2021-10-13 08:01:20,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:01:20,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354673592] [2021-10-13 08:01:20,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:01:20,925 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:01:20,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:01:20,926 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:01:20,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 08:01:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:01:21,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 08:01:21,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:01:23,467 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 79 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:23,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:01:27,484 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:27,484 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:01:27,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354673592] [2021-10-13 08:01:27,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1354673592] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 08:01:27,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 08:01:27,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 08:01:27,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165174625] [2021-10-13 08:01:27,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:01:27,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:01:27,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:01:27,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:01:27,491 INFO L87 Difference]: Start difference. First operand 4104 states and 4955 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:41,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:01:41,856 INFO L93 Difference]: Finished difference Result 8384 states and 10386 transitions. [2021-10-13 08:01:41,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:01:41,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 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 223 [2021-10-13 08:01:41,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:01:41,885 INFO L225 Difference]: With dead ends: 8384 [2021-10-13 08:01:41,885 INFO L226 Difference]: Without dead ends: 5576 [2021-10-13 08:01:41,889 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 66.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:01:41,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5576 states. [2021-10-13 08:01:41,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5576 to 5576. [2021-10-13 08:01:42,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5576 states, 5575 states have (on average 1.2199103139013452) internal successors, (6801), 5575 states have internal predecessors, (6801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:42,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5576 states to 5576 states and 6801 transitions. [2021-10-13 08:01:42,018 INFO L78 Accepts]: Start accepts. Automaton has 5576 states and 6801 transitions. Word has length 223 [2021-10-13 08:01:42,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:01:42,019 INFO L470 AbstractCegarLoop]: Abstraction has 5576 states and 6801 transitions. [2021-10-13 08:01:42,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:42,019 INFO L276 IsEmpty]: Start isEmpty. Operand 5576 states and 6801 transitions. [2021-10-13 08:01:42,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-10-13 08:01:42,024 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:01:42,026 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 08:01:42,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 08:01:42,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:01:42,240 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:01:42,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:01:42,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1234528902, now seen corresponding path program 1 times [2021-10-13 08:01:42,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:01:42,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223805829] [2021-10-13 08:01:42,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:01:42,242 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:01:42,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:01:42,244 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:01:42,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 08:01:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:01:42,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:01:42,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:01:43,441 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:43,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:01:44,255 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:44,256 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:01:44,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223805829] [2021-10-13 08:01:44,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1223805829] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:01:44,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:01:44,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:01:44,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737704135] [2021-10-13 08:01:44,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:01:44,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:01:44,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:01:44,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:01:44,259 INFO L87 Difference]: Start difference. First operand 5576 states and 6801 transitions. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:54,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:01:54,130 INFO L93 Difference]: Finished difference Result 13560 states and 16557 transitions. [2021-10-13 08:01:54,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:01:54,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 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 230 [2021-10-13 08:01:54,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:01:54,166 INFO L225 Difference]: With dead ends: 13560 [2021-10-13 08:01:54,167 INFO L226 Difference]: Without dead ends: 8170 [2021-10-13 08:01:54,173 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:01:54,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8170 states. [2021-10-13 08:01:54,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8170 to 7415. [2021-10-13 08:01:54,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7415 states, 7414 states have (on average 1.1897760992716482) internal successors, (8821), 7414 states have internal predecessors, (8821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:54,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7415 states to 7415 states and 8821 transitions. [2021-10-13 08:01:54,422 INFO L78 Accepts]: Start accepts. Automaton has 7415 states and 8821 transitions. Word has length 230 [2021-10-13 08:01:54,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:01:54,437 INFO L470 AbstractCegarLoop]: Abstraction has 7415 states and 8821 transitions. [2021-10-13 08:01:54,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:54,437 INFO L276 IsEmpty]: Start isEmpty. Operand 7415 states and 8821 transitions. [2021-10-13 08:01:54,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-10-13 08:01:54,443 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:01:54,443 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:01:54,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 08:01:54,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:01:54,664 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:01:54,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:01:54,665 INFO L82 PathProgramCache]: Analyzing trace with hash 2110996565, now seen corresponding path program 1 times [2021-10-13 08:01:54,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:01:54,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377040482] [2021-10-13 08:01:54,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:01:54,667 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:01:54,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:01:54,670 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:01:54,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 08:01:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:01:55,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:01:55,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:01:56,114 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-13 08:01:56,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:01:56,671 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-13 08:01:56,672 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:01:56,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [377040482] [2021-10-13 08:01:56,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [377040482] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:01:56,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:01:56,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 08:01:56,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299397337] [2021-10-13 08:01:56,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:01:56,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:01:56,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:01:56,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:01:56,674 INFO L87 Difference]: Start difference. First operand 7415 states and 8821 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:02:03,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:02:03,754 INFO L93 Difference]: Finished difference Result 16114 states and 19349 transitions. [2021-10-13 08:02:03,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:02:03,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 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 245 [2021-10-13 08:02:03,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:02:03,807 INFO L225 Difference]: With dead ends: 16114 [2021-10-13 08:02:03,807 INFO L226 Difference]: Without dead ends: 8515 [2021-10-13 08:02:03,813 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 487 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:02:03,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8515 states. [2021-10-13 08:02:03,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8515 to 8514. [2021-10-13 08:02:04,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8514 states, 8513 states have (on average 1.1837190179725126) internal successors, (10077), 8513 states have internal predecessors, (10077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:02:04,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8514 states to 8514 states and 10077 transitions. [2021-10-13 08:02:04,044 INFO L78 Accepts]: Start accepts. Automaton has 8514 states and 10077 transitions. Word has length 245 [2021-10-13 08:02:04,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:02:04,044 INFO L470 AbstractCegarLoop]: Abstraction has 8514 states and 10077 transitions. [2021-10-13 08:02:04,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:02:04,045 INFO L276 IsEmpty]: Start isEmpty. Operand 8514 states and 10077 transitions. [2021-10-13 08:02:04,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-10-13 08:02:04,053 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:02:04,054 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 08:02:04,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 08:02:04,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:02:04,261 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:02:04,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:02:04,261 INFO L82 PathProgramCache]: Analyzing trace with hash -713362217, now seen corresponding path program 1 times [2021-10-13 08:02:04,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:02:04,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437106634] [2021-10-13 08:02:04,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:02:04,264 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:02:04,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:02:04,266 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:02:04,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 08:02:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:02:05,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 08:02:05,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:02:09,440 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 54 proven. 149 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:02:09,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:02:49,376 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 67 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:02:49,376 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:02:49,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437106634] [2021-10-13 08:02:49,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [437106634] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:02:49,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2090726806] [2021-10-13 08:02:49,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:02:49,377 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:02:49,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:02:49,386 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:02:49,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-13 08:02:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:02:51,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 08:02:51,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:02:52,988 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-13 08:02:52,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:02:54,971 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-13 08:02:54,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2090726806] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:02:54,972 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 08:02:54,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [4, 4] total 16 [2021-10-13 08:02:54,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106560745] [2021-10-13 08:02:54,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 08:02:54,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:02:54,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 08:02:54,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-10-13 08:02:54,974 INFO L87 Difference]: Start difference. First operand 8514 states and 10077 transitions. Second operand has 10 states, 10 states have (on average 20.1) internal successors, (201), 10 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:03:08,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:03:08,066 INFO L93 Difference]: Finished difference Result 17982 states and 21515 transitions. [2021-10-13 08:03:08,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 08:03:08,081 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.1) internal successors, (201), 10 states have internal predecessors, (201), 0 states have call successors, (0), 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 304 [2021-10-13 08:03:08,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:03:08,092 INFO L225 Difference]: With dead ends: 17982 [2021-10-13 08:03:08,092 INFO L226 Difference]: Without dead ends: 9654 [2021-10-13 08:03:08,099 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1214 GetRequests, 1199 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1603.3ms TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-10-13 08:03:08,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9654 states. [2021-10-13 08:03:08,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9654 to 8882. [2021-10-13 08:03:08,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8882 states, 8881 states have (on average 1.1734038959576625) internal successors, (10421), 8881 states have internal predecessors, (10421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:03:08,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8882 states to 8882 states and 10421 transitions. [2021-10-13 08:03:08,259 INFO L78 Accepts]: Start accepts. Automaton has 8882 states and 10421 transitions. Word has length 304 [2021-10-13 08:03:08,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:03:08,259 INFO L470 AbstractCegarLoop]: Abstraction has 8882 states and 10421 transitions. [2021-10-13 08:03:08,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.1) internal successors, (201), 10 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:03:08,260 INFO L276 IsEmpty]: Start isEmpty. Operand 8882 states and 10421 transitions. [2021-10-13 08:03:08,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-10-13 08:03:08,306 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:03:08,307 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:03:08,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 08:03:08,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2021-10-13 08:03:08,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 08:03:08,727 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:03:08,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:03:08,727 INFO L82 PathProgramCache]: Analyzing trace with hash -939313746, now seen corresponding path program 1 times [2021-10-13 08:03:08,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:03:08,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509390143] [2021-10-13 08:03:08,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:03:08,729 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:03:08,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:03:08,730 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:03:08,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 08:03:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:03:10,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 08:03:10,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:03:14,055 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 349 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-10-13 08:03:14,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:03:42,163 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 79 proven. 270 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-10-13 08:03:42,163 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:03:42,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509390143] [2021-10-13 08:03:42,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509390143] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:03:42,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1450862539] [2021-10-13 08:03:42,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:03:42,164 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:03:42,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:03:42,164 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:03:42,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-13 08:03:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:03:44,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 08:03:44,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:03:47,186 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 259 proven. 40 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-10-13 08:03:47,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:03:49,273 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 259 proven. 40 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-10-13 08:03:49,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1450862539] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:03:49,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464168432] [2021-10-13 08:03:49,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:03:49,274 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:03:49,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:03:49,275 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:03:49,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-13 08:03:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:03:51,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:03:51,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:03:52,921 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-10-13 08:03:52,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:03:53,963 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-10-13 08:03:53,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464168432] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:03:53,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-13 08:03:53,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5, 7, 7] total 16 [2021-10-13 08:03:53,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762913456] [2021-10-13 08:03:53,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:03:53,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:03:53,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:03:53,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-10-13 08:03:53,966 INFO L87 Difference]: Start difference. First operand 8882 states and 10421 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:03:59,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:03:59,086 INFO L93 Difference]: Finished difference Result 16472 states and 19460 transitions. [2021-10-13 08:03:59,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:03:59,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 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 335 [2021-10-13 08:03:59,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:03:59,101 INFO L225 Difference]: With dead ends: 16472 [2021-10-13 08:03:59,101 INFO L226 Difference]: Without dead ends: 8695 [2021-10-13 08:03:59,108 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2004 GetRequests, 1990 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1748.6ms TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-10-13 08:03:59,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8695 states. [2021-10-13 08:03:59,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8695 to 7775. [2021-10-13 08:03:59,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7775 states, 7774 states have (on average 1.1363519423720092) internal successors, (8834), 7774 states have internal predecessors, (8834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:03:59,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7775 states to 7775 states and 8834 transitions. [2021-10-13 08:03:59,278 INFO L78 Accepts]: Start accepts. Automaton has 7775 states and 8834 transitions. Word has length 335 [2021-10-13 08:03:59,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:03:59,279 INFO L470 AbstractCegarLoop]: Abstraction has 7775 states and 8834 transitions. [2021-10-13 08:03:59,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:03:59,279 INFO L276 IsEmpty]: Start isEmpty. Operand 7775 states and 8834 transitions. [2021-10-13 08:03:59,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-10-13 08:03:59,291 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:03:59,291 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:03:59,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-13 08:03:59,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 08:03:59,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-10-13 08:03:59,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 08:03:59,906 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:03:59,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:03:59,907 INFO L82 PathProgramCache]: Analyzing trace with hash 173528797, now seen corresponding path program 1 times [2021-10-13 08:03:59,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:03:59,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946340046] [2021-10-13 08:03:59,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:03:59,909 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:03:59,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:03:59,910 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:03:59,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-13 08:04:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:04:02,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 08:04:02,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:04:03,245 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 272 proven. 81 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-13 08:04:03,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:04:04,336 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-13 08:04:04,337 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:04:04,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946340046] [2021-10-13 08:04:04,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946340046] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 08:04:04,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 08:04:04,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 08:04:04,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376428866] [2021-10-13 08:04:04,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:04:04,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:04:04,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:04:04,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:04:04,342 INFO L87 Difference]: Start difference. First operand 7775 states and 8834 transitions. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:04:15,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:04:15,714 INFO L93 Difference]: Finished difference Result 16284 states and 18540 transitions. [2021-10-13 08:04:15,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:04:15,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 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 353 [2021-10-13 08:04:15,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:04:15,728 INFO L225 Difference]: With dead ends: 16284 [2021-10-13 08:04:15,728 INFO L226 Difference]: Without dead ends: 8695 [2021-10-13 08:04:15,735 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 701 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:04:15,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8695 states. [2021-10-13 08:04:15,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8695 to 8695. [2021-10-13 08:04:15,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8695 states, 8694 states have (on average 1.1235334713595584) internal successors, (9768), 8694 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:04:15,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8695 states to 8695 states and 9768 transitions. [2021-10-13 08:04:15,876 INFO L78 Accepts]: Start accepts. Automaton has 8695 states and 9768 transitions. Word has length 353 [2021-10-13 08:04:15,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:04:15,876 INFO L470 AbstractCegarLoop]: Abstraction has 8695 states and 9768 transitions. [2021-10-13 08:04:15,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:04:15,877 INFO L276 IsEmpty]: Start isEmpty. Operand 8695 states and 9768 transitions. [2021-10-13 08:04:15,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2021-10-13 08:04:15,911 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:04:15,912 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:04:15,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-13 08:04:16,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:04:16,124 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:04:16,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:04:16,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1542719147, now seen corresponding path program 1 times [2021-10-13 08:04:16,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:04:16,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1252513301] [2021-10-13 08:04:16,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:04:16,127 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:04:16,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:04:16,128 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:04:16,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-13 08:04:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:04:18,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 08:04:18,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:04:19,617 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 250 proven. 102 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-13 08:04:19,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:04:20,654 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 352 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-13 08:04:20,654 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:04:20,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1252513301] [2021-10-13 08:04:20,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1252513301] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 08:04:20,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 08:04:20,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 08:04:20,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801310051] [2021-10-13 08:04:20,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:04:20,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:04:20,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:04:20,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:04:20,660 INFO L87 Difference]: Start difference. First operand 8695 states and 9768 transitions. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:04:45,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:04:45,430 INFO L93 Difference]: Finished difference Result 18128 states and 20388 transitions. [2021-10-13 08:04:45,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:04:45,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 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 358 [2021-10-13 08:04:45,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:04:45,448 INFO L225 Difference]: With dead ends: 18128 [2021-10-13 08:04:45,448 INFO L226 Difference]: Without dead ends: 9619 [2021-10-13 08:04:45,455 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 711 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:04:45,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9619 states. [2021-10-13 08:04:45,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9619 to 9615. [2021-10-13 08:04:45,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9615 states, 9614 states have (on average 1.1183690451425006) internal successors, (10752), 9614 states have internal predecessors, (10752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:04:45,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9615 states to 9615 states and 10752 transitions. [2021-10-13 08:04:45,700 INFO L78 Accepts]: Start accepts. Automaton has 9615 states and 10752 transitions. Word has length 358 [2021-10-13 08:04:45,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:04:45,701 INFO L470 AbstractCegarLoop]: Abstraction has 9615 states and 10752 transitions. [2021-10-13 08:04:45,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:04:45,702 INFO L276 IsEmpty]: Start isEmpty. Operand 9615 states and 10752 transitions. [2021-10-13 08:04:45,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2021-10-13 08:04:45,709 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:04:45,710 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:04:45,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-13 08:04:45,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:04:45,929 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:04:45,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:04:45,929 INFO L82 PathProgramCache]: Analyzing trace with hash -859349066, now seen corresponding path program 1 times [2021-10-13 08:04:45,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:04:45,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571126986] [2021-10-13 08:04:45,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:04:45,932 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:04:45,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:04:45,952 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:04:45,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-13 08:04:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:04:48,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 08:04:48,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:04:49,845 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 277 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-10-13 08:04:49,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:04:57,321 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 277 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-10-13 08:04:57,322 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:04:57,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571126986] [2021-10-13 08:04:57,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571126986] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:04:57,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1467941723] [2021-10-13 08:04:57,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:04:57,322 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:04:57,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:04:57,323 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:04:57,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-10-13 08:05:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:05:01,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:05:01,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:05:01,935 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-10-13 08:05:01,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:05:02,537 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-10-13 08:05:02,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1467941723] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:05:02,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 08:05:02,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3, 3] total 8 [2021-10-13 08:05:02,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545070683] [2021-10-13 08:05:02,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:05:02,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:05:02,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:05:02,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-13 08:05:02,541 INFO L87 Difference]: Start difference. First operand 9615 states and 10752 transitions. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:05:11,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:05:11,777 INFO L93 Difference]: Finished difference Result 20346 states and 22715 transitions. [2021-10-13 08:05:11,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:05:11,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 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 363 [2021-10-13 08:05:11,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:05:11,790 INFO L225 Difference]: With dead ends: 20346 [2021-10-13 08:05:11,790 INFO L226 Difference]: Without dead ends: 10733 [2021-10-13 08:05:11,797 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1448 GetRequests, 1442 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 208.1ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-13 08:05:11,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10733 states. [2021-10-13 08:05:11,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10733 to 9063. [2021-10-13 08:05:11,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9063 states, 9062 states have (on average 1.104502317369234) internal successors, (10009), 9062 states have internal predecessors, (10009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:05:11,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9063 states to 9063 states and 10009 transitions. [2021-10-13 08:05:11,956 INFO L78 Accepts]: Start accepts. Automaton has 9063 states and 10009 transitions. Word has length 363 [2021-10-13 08:05:11,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:05:11,956 INFO L470 AbstractCegarLoop]: Abstraction has 9063 states and 10009 transitions. [2021-10-13 08:05:11,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:05:11,957 INFO L276 IsEmpty]: Start isEmpty. Operand 9063 states and 10009 transitions. [2021-10-13 08:05:11,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2021-10-13 08:05:11,964 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:05:11,965 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2021-10-13 08:05:11,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-13 08:05:12,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-10-13 08:05:12,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 08:05:12,391 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:05:12,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:05:12,392 INFO L82 PathProgramCache]: Analyzing trace with hash -348121428, now seen corresponding path program 1 times [2021-10-13 08:05:12,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:05:12,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920540170] [2021-10-13 08:05:12,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:05:12,394 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:05:12,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:05:12,394 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:05:12,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-13 08:05:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:05:15,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 08:05:15,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:05:16,715 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 119 proven. 199 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-10-13 08:05:16,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:05:18,021 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 119 proven. 199 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-10-13 08:05:18,022 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:05:18,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [920540170] [2021-10-13 08:05:18,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [920540170] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:05:18,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [470622973] [2021-10-13 08:05:18,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:05:18,022 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:05:18,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:05:18,023 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:05:18,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-10-13 08:05:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:05:22,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 08:05:22,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:05:23,971 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 119 proven. 199 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-10-13 08:05:23,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:05:25,283 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 119 proven. 199 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-10-13 08:05:25,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [470622973] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:05:25,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575058818] [2021-10-13 08:05:25,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:05:25,283 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:05:25,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:05:25,285 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:05:25,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-13 08:05:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:05:29,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 08:05:29,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:05:30,548 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 119 proven. 199 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-10-13 08:05:30,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:05:32,303 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 329 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:05:32,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575058818] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:05:32,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 08:05:32,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3, 3, 3, 4] total 6 [2021-10-13 08:05:32,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823453564] [2021-10-13 08:05:32,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 08:05:32,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:05:32,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 08:05:32,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-13 08:05:32,307 INFO L87 Difference]: Start difference. First operand 9063 states and 10009 transitions. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 6 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:06:05,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:06:05,721 INFO L93 Difference]: Finished difference Result 23658 states and 26013 transitions. [2021-10-13 08:06:05,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 08:06:05,722 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 6 states have internal predecessors, (614), 0 states have call successors, (0), 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 381 [2021-10-13 08:06:05,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:06:05,723 INFO L225 Difference]: With dead ends: 23658 [2021-10-13 08:06:05,723 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 08:06:05,728 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2281 GetRequests, 2275 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 52.6ms TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-13 08:06:05,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 08:06:05,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 08:06:05,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:06:05,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 08:06:05,729 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 381 [2021-10-13 08:06:05,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:06:05,729 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 08:06:05,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 6 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:06:05,730 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 08:06:05,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 08:06:05,733 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:06:05,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-13 08:06:05,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-13 08:06:06,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-10-13 08:06:06,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 08:06:06,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 08:06:06,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:06:06,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:06:07,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:06:09,685 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-10-13 08:06:09,685 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,685 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-10-13 08:06:09,685 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,685 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,686 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,686 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,686 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,686 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,686 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-10-13 08:06:09,686 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-10-13 08:06:09,686 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-10-13 08:06:09,686 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,686 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,686 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,686 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,687 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,687 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,687 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,687 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,687 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,687 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,687 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-10-13 08:06:09,687 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-10-13 08:06:09,687 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-10-13 08:06:09,688 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,688 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-10-13 08:06:09,688 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-10-13 08:06:09,688 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,688 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,688 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,688 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,688 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,688 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,688 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-10-13 08:06:09,688 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-10-13 08:06:09,688 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-10-13 08:06:09,688 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,688 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,689 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,689 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse8 (= ~a25~0 (_ bv12 32)))) (let ((.cse6 (not (bvsge (_ bv138 32) ~a23~0))) (.cse3 (not (= (_ bv13 32) ~a25~0))) (.cse2 (not (bvslt (_ bv140 32) ~a29~0))) (.cse10 (= ~a25~0 (_ bv9 32))) (.cse0 (= ~a4~0 (_ bv1 32))) (.cse14 (not (bvslt (_ bv277 32) ~a29~0))) (.cse12 (not .cse8))) (let ((.cse1 (or .cse14 .cse12)) (.cse5 (not .cse0)) (.cse13 (not .cse10)) (.cse9 (or (and .cse2 .cse6 .cse3 .cse0) (and .cse2 .cse8) (and .cse2 (= (_ bv10 32) ~a25~0) .cse0))) (.cse11 (not (bvslt (_ bv4294967253 32) (bvadd ~a23~0 (_ bv4294366992 32))))) (.cse7 (not (bvsge (_ bv245 32) ~a29~0))) (.cse4 (not (bvslt (_ bv4294967253 32) ~a23~0)))) (or (and (or (not (= ~a8~0 (_ bv15 32))) (not (= ~a3~0 (_ bv1 32)))) .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse7 .cse1) (and .cse6 .cse8 (not (bvslt (_ bv245 32) ~a29~0))) (and .cse9 .cse10) (and .cse11 .cse12) (and .cse3 .cse12 .cse7) (and .cse6 .cse11) (and .cse8 .cse5) (and (or .cse13 (not (bvsle ~a29~0 (_ bv140 32)))) .cse6 .cse3 .cse5) (and .cse13 .cse0 .cse12) (and .cse11 .cse4) (and .cse9 .cse11) (and .cse14 .cse12 .cse7 .cse4))))) [2021-10-13 08:06:09,689 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,689 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-10-13 08:06:09,689 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-10-13 08:06:09,690 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,690 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,690 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,690 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,690 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,690 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,690 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-10-13 08:06:09,690 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-10-13 08:06:09,691 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-10-13 08:06:09,691 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-10-13 08:06:09,691 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,691 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,691 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,691 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,691 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,691 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,691 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,691 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-10-13 08:06:09,691 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-10-13 08:06:09,691 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-10-13 08:06:09,691 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,691 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,692 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,692 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,692 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,692 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,692 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,692 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,692 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,692 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-10-13 08:06:09,692 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-10-13 08:06:09,692 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-10-13 08:06:09,692 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,692 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse8 (= ~a25~0 (_ bv12 32)))) (let ((.cse6 (not (bvsge (_ bv138 32) ~a23~0))) (.cse3 (not (= (_ bv13 32) ~a25~0))) (.cse2 (not (bvslt (_ bv140 32) ~a29~0))) (.cse10 (= ~a25~0 (_ bv9 32))) (.cse0 (= ~a4~0 (_ bv1 32))) (.cse14 (not (bvslt (_ bv277 32) ~a29~0))) (.cse12 (not .cse8))) (let ((.cse1 (or .cse14 .cse12)) (.cse5 (not .cse0)) (.cse13 (not .cse10)) (.cse9 (or (and .cse2 .cse6 .cse3 .cse0) (and .cse2 .cse8) (and .cse2 (= (_ bv10 32) ~a25~0) .cse0))) (.cse11 (not (bvslt (_ bv4294967253 32) (bvadd ~a23~0 (_ bv4294366992 32))))) (.cse7 (not (bvsge (_ bv245 32) ~a29~0))) (.cse4 (not (bvslt (_ bv4294967253 32) ~a23~0)))) (or (and (or (not (= ~a8~0 (_ bv15 32))) (not (= ~a3~0 (_ bv1 32)))) .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse7 .cse1) (and .cse6 .cse8 (not (bvslt (_ bv245 32) ~a29~0))) (and .cse9 .cse10) (and .cse11 .cse12) (and .cse3 .cse12 .cse7) (and .cse6 .cse11) (and .cse8 .cse5) (and (or .cse13 (not (bvsle ~a29~0 (_ bv140 32)))) .cse6 .cse3 .cse5) (and .cse13 .cse0 .cse12) (and .cse11 .cse4) (and .cse9 .cse11) (and .cse14 .cse12 .cse7 .cse4))))) [2021-10-13 08:06:09,692 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,693 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,693 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,693 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,693 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,693 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,693 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,693 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,694 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-10-13 08:06:09,694 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-10-13 08:06:09,694 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-10-13 08:06:09,694 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-10-13 08:06:09,694 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-10-13 08:06:09,694 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-10-13 08:06:09,695 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-10-13 08:06:09,695 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,695 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,695 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,695 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,695 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,695 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,696 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,696 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,696 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,696 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,696 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 08:06:09,696 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-10-13 08:06:09,697 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-10-13 08:06:09,697 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-10-13 08:06:09,697 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-10-13 08:06:09,697 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,697 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,697 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,697 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,698 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,698 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-10-13 08:06:09,698 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-10-13 08:06:09,698 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-10-13 08:06:09,698 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,698 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,699 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,699 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,699 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-10-13 08:06:09,699 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-10-13 08:06:09,699 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,699 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,699 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,700 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,700 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,700 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,700 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-10-13 08:06:09,700 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-10-13 08:06:09,700 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,700 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,701 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-10-13 08:06:09,701 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-10-13 08:06:09,701 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-10-13 08:06:09,701 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 08:06:09,701 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2021-10-13 08:06:09,701 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,702 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,702 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,702 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,702 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,702 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,702 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,702 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-10-13 08:06:09,703 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-10-13 08:06:09,703 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-10-13 08:06:09,703 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-10-13 08:06:09,703 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-10-13 08:06:09,703 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-10-13 08:06:09,703 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-10-13 08:06:09,703 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,704 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,704 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-10-13 08:06:09,704 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-10-13 08:06:09,704 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,704 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,704 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,704 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,705 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,705 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-10-13 08:06:09,705 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-10-13 08:06:09,705 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-10-13 08:06:09,705 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,705 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,706 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,706 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,706 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,706 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,706 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-10-13 08:06:09,706 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-10-13 08:06:09,706 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-10-13 08:06:09,707 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,707 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,707 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,707 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,707 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,707 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,707 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,708 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,708 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-10-13 08:06:09,708 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-10-13 08:06:09,708 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-10-13 08:06:09,708 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,708 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,708 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,708 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,708 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,708 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,708 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,708 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,708 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,708 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,709 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,709 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-10-13 08:06:09,709 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-10-13 08:06:09,709 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-13 08:06:09,709 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-10-13 08:06:09,709 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-10-13 08:06:09,709 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,709 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,709 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,710 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,710 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,710 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,710 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,710 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-10-13 08:06:09,710 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-10-13 08:06:09,710 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-10-13 08:06:09,711 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,711 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,711 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,711 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-10-13 08:06:09,711 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-10-13 08:06:09,711 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,712 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,712 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,712 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,712 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,712 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-10-13 08:06:09,712 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-10-13 08:06:09,712 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,713 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,713 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-10-13 08:06:09,713 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-10-13 08:06:09,713 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,713 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 08:06:09,713 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,713 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,714 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,714 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,714 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,714 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-10-13 08:06:09,714 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-10-13 08:06:09,714 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-10-13 08:06:09,714 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-10-13 08:06:09,715 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,715 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,715 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,715 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,715 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,715 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,715 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,716 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,716 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-10-13 08:06:09,716 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-10-13 08:06:09,717 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-10-13 08:06:09,717 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-10-13 08:06:09,718 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-10-13 08:06:09,718 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-10-13 08:06:09,718 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,718 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,719 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,719 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,719 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,721 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,721 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,721 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-10-13 08:06:09,721 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-10-13 08:06:09,721 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 08:06:09,721 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,722 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,722 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,723 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,723 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,723 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,723 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-10-13 08:06:09,723 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-10-13 08:06:09,723 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,723 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,724 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,724 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,724 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,724 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,724 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,724 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-10-13 08:06:09,724 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-10-13 08:06:09,725 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,725 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,725 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-10-13 08:06:09,725 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-10-13 08:06:09,725 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-10-13 08:06:09,725 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-10-13 08:06:09,728 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 08:06:09,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:06:09 BoogieIcfgContainer [2021-10-13 08:06:09,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 08:06:09,776 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 08:06:09,776 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 08:06:09,776 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 08:06:09,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:00:18" (3/4) ... [2021-10-13 08:06:09,780 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 08:06:09,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 08:06:09,820 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 08:06:09,822 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 08:06:09,824 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 08:06:10,007 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 08:06:10,007 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 08:06:10,009 INFO L168 Benchmark]: Toolchain (without parser) took 360460.92 ms. Allocated memory was 54.5 MB in the beginning and 308.3 MB in the end (delta: 253.8 MB). Free memory was 29.3 MB in the beginning and 51.1 MB in the end (delta: -21.9 MB). Peak memory consumption was 233.3 MB. Max. memory is 16.1 GB. [2021-10-13 08:06:10,009 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 54.5 MB. Free memory is still 35.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:06:10,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 992.96 ms. Allocated memory was 54.5 MB in the beginning and 75.5 MB in the end (delta: 21.0 MB). Free memory was 29.1 MB in the beginning and 41.9 MB in the end (delta: -12.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:06:10,010 INFO L168 Benchmark]: Boogie Procedure Inliner took 163.26 ms. Allocated memory is still 75.5 MB. Free memory was 41.9 MB in the beginning and 48.8 MB in the end (delta: -6.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2021-10-13 08:06:10,011 INFO L168 Benchmark]: Boogie Preprocessor took 134.83 ms. Allocated memory is still 75.5 MB. Free memory was 48.8 MB in the beginning and 41.9 MB in the end (delta: 7.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 08:06:10,011 INFO L168 Benchmark]: RCFGBuilder took 7397.64 ms. Allocated memory was 75.5 MB in the beginning and 121.6 MB in the end (delta: 46.1 MB). Free memory was 41.9 MB in the beginning and 62.4 MB in the end (delta: -20.5 MB). Peak memory consumption was 33.7 MB. Max. memory is 16.1 GB. [2021-10-13 08:06:10,012 INFO L168 Benchmark]: TraceAbstraction took 351531.45 ms. Allocated memory was 121.6 MB in the beginning and 308.3 MB in the end (delta: 186.6 MB). Free memory was 61.6 MB in the beginning and 76.3 MB in the end (delta: -14.7 MB). Peak memory consumption was 210.0 MB. Max. memory is 16.1 GB. [2021-10-13 08:06:10,012 INFO L168 Benchmark]: Witness Printer took 231.70 ms. Allocated memory is still 308.3 MB. Free memory was 75.3 MB in the beginning and 51.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-13 08:06:10,015 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 54.5 MB. Free memory is still 35.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 992.96 ms. Allocated memory was 54.5 MB in the beginning and 75.5 MB in the end (delta: 21.0 MB). Free memory was 29.1 MB in the beginning and 41.9 MB in the end (delta: -12.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 163.26 ms. Allocated memory is still 75.5 MB. Free memory was 41.9 MB in the beginning and 48.8 MB in the end (delta: -6.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 134.83 ms. Allocated memory is still 75.5 MB. Free memory was 48.8 MB in the beginning and 41.9 MB in the end (delta: 7.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 7397.64 ms. Allocated memory was 75.5 MB in the beginning and 121.6 MB in the end (delta: 46.1 MB). Free memory was 41.9 MB in the beginning and 62.4 MB in the end (delta: -20.5 MB). Peak memory consumption was 33.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 351531.45 ms. Allocated memory was 121.6 MB in the beginning and 308.3 MB in the end (delta: 186.6 MB). Free memory was 61.6 MB in the beginning and 76.3 MB in the end (delta: -14.7 MB). Peak memory consumption was 210.0 MB. Max. memory is 16.1 GB. * Witness Printer took 231.70 ms. Allocated memory is still 308.3 MB. Free memory was 75.3 MB in the beginning and 51.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 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: 142]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 351414.9ms, OverallIterations: 13, TraceHistogramMax: 4, EmptinessCheckTime: 163.8ms, AutomataDifference: 185299.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 3327.3ms, InitialAbstractionConstructionTime: 18.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2039 SDtfs, 4095 SDslu, 475 SDs, 0 SdLazy, 12884 SolverSat, 2544 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 164907.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10615 GetRequests, 10553 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 3790.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9615occurred in iteration=11, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1764.8ms AutomataMinimizationTime, 13 MinimizatonAttempts, 4512 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 200 NumberOfFragments, 523 HoareAnnotationTreeSize, 3 FomulaSimplifications, 16742 FormulaSimplificationTreeSizeReduction, 894.8ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 6728 FormulaSimplificationTreeSizeReductionInter, 2425.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 398.9ms SsaConstructionTime, 2981.0ms SatisfiabilityAnalysisTime, 120999.9ms InterpolantComputationTime, 5325 NumberOfCodeBlocks, 5325 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 10612 ConstructedInterpolants, 0 QuantifiedInterpolants, 49574 SizeOfPredicates, 29 NumberOfNonLiveVariables, 6633 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 38 InterpolantComputations, 20 PerfectInterpolantSequences, 7037/9960 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((!(a8 == 15bv32) || !(a3 == 1bv32)) && a4 == 1bv32) && (!~bvslt32(277bv32, a29) || !(a25 == 12bv32))) || (((!~bvslt32(140bv32, a29) && !(13bv32 == a25)) && !~bvslt32(4294967253bv32, a23)) && !(a4 == 1bv32))) || (((!~bvsge32(138bv32, a23) && a4 == 1bv32) && !~bvsge32(245bv32, a29)) && (!~bvslt32(277bv32, a29) || !(a25 == 12bv32)))) || ((!~bvsge32(138bv32, a23) && a25 == 12bv32) && !~bvslt32(245bv32, a29))) || ((((((!~bvslt32(140bv32, a29) && !~bvsge32(138bv32, a23)) && !(13bv32 == a25)) && a4 == 1bv32) || (!~bvslt32(140bv32, a29) && a25 == 12bv32)) || ((!~bvslt32(140bv32, a29) && 10bv32 == a25) && a4 == 1bv32)) && a25 == 9bv32)) || (!~bvslt32(4294967253bv32, ~bvadd64(a23, 4294366992bv32)) && !(a25 == 12bv32))) || ((!(13bv32 == a25) && !(a25 == 12bv32)) && !~bvsge32(245bv32, a29))) || (!~bvsge32(138bv32, a23) && !~bvslt32(4294967253bv32, ~bvadd64(a23, 4294366992bv32)))) || (a25 == 12bv32 && !(a4 == 1bv32))) || ((((!(a25 == 9bv32) || !~bvsle32(a29, 140bv32)) && !~bvsge32(138bv32, a23)) && !(13bv32 == a25)) && !(a4 == 1bv32))) || ((!(a25 == 9bv32) && a4 == 1bv32) && !(a25 == 12bv32))) || (!~bvslt32(4294967253bv32, ~bvadd64(a23, 4294366992bv32)) && !~bvslt32(4294967253bv32, a23))) || ((((((!~bvslt32(140bv32, a29) && !~bvsge32(138bv32, a23)) && !(13bv32 == a25)) && a4 == 1bv32) || (!~bvslt32(140bv32, a29) && a25 == 12bv32)) || ((!~bvslt32(140bv32, a29) && 10bv32 == a25) && a4 == 1bv32)) && !~bvslt32(4294967253bv32, ~bvadd64(a23, 4294366992bv32)))) || (((!~bvslt32(277bv32, a29) && !(a25 == 12bv32)) && !~bvsge32(245bv32, a29)) && !~bvslt32(4294967253bv32, a23)) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((!(a8 == 15bv32) || !(a3 == 1bv32)) && a4 == 1bv32) && (!~bvslt32(277bv32, a29) || !(a25 == 12bv32))) || (((!~bvslt32(140bv32, a29) && !(13bv32 == a25)) && !~bvslt32(4294967253bv32, a23)) && !(a4 == 1bv32))) || (((!~bvsge32(138bv32, a23) && a4 == 1bv32) && !~bvsge32(245bv32, a29)) && (!~bvslt32(277bv32, a29) || !(a25 == 12bv32)))) || ((!~bvsge32(138bv32, a23) && a25 == 12bv32) && !~bvslt32(245bv32, a29))) || ((((((!~bvslt32(140bv32, a29) && !~bvsge32(138bv32, a23)) && !(13bv32 == a25)) && a4 == 1bv32) || (!~bvslt32(140bv32, a29) && a25 == 12bv32)) || ((!~bvslt32(140bv32, a29) && 10bv32 == a25) && a4 == 1bv32)) && a25 == 9bv32)) || (!~bvslt32(4294967253bv32, ~bvadd64(a23, 4294366992bv32)) && !(a25 == 12bv32))) || ((!(13bv32 == a25) && !(a25 == 12bv32)) && !~bvsge32(245bv32, a29))) || (!~bvsge32(138bv32, a23) && !~bvslt32(4294967253bv32, ~bvadd64(a23, 4294366992bv32)))) || (a25 == 12bv32 && !(a4 == 1bv32))) || ((((!(a25 == 9bv32) || !~bvsle32(a29, 140bv32)) && !~bvsge32(138bv32, a23)) && !(13bv32 == a25)) && !(a4 == 1bv32))) || ((!(a25 == 9bv32) && a4 == 1bv32) && !(a25 == 12bv32))) || (!~bvslt32(4294967253bv32, ~bvadd64(a23, 4294366992bv32)) && !~bvslt32(4294967253bv32, a23))) || ((((((!~bvslt32(140bv32, a29) && !~bvsge32(138bv32, a23)) && !(13bv32 == a25)) && a4 == 1bv32) || (!~bvslt32(140bv32, a29) && a25 == 12bv32)) || ((!~bvslt32(140bv32, a29) && 10bv32 == a25) && a4 == 1bv32)) && !~bvslt32(4294967253bv32, ~bvadd64(a23, 4294366992bv32)))) || (((!~bvslt32(277bv32, a29) && !(a25 == 12bv32)) && !~bvsge32(245bv32, a29)) && !~bvslt32(4294967253bv32, a23)) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 08:06:10,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e09d14a3-aae5-406d-a797-c6891cbb6b52/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...