./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/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_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/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_a6416ac6-a9b2-4629-aed1-ec1ee2613594/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 310063ef643a90e947dd66ba142cc8ae546f077a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/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_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/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_a6416ac6-a9b2-4629-aed1-ec1ee2613594/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 310063ef643a90e947dd66ba142cc8ae546f077a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 08:13:35,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:13:35,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:13:35,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:13:35,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:13:35,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:13:35,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:13:35,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:13:35,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:13:35,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:13:35,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:13:35,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:13:35,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:13:35,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:13:35,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:13:35,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:13:35,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:13:35,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:13:35,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:13:35,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:13:35,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:13:35,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:13:35,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:13:35,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:13:35,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:13:35,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:13:35,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:13:35,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:13:35,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:13:35,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:13:35,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:13:35,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:13:35,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:13:35,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:13:35,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:13:35,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:13:35,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:13:35,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:13:35,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:13:35,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:13:35,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:13:35,511 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 08:13:35,568 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:13:35,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:13:35,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:13:35,570 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:13:35,570 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:13:35,571 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:13:35,571 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 08:13:35,571 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:13:35,571 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:13:35,571 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 08:13:35,572 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 08:13:35,573 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:13:35,573 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 08:13:35,573 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 08:13:35,573 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 08:13:35,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:13:35,574 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:13:35,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 08:13:35,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:13:35,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:13:35,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 08:13:35,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:13:35,580 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 08:13:35,581 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:13:35,581 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:13:35,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 08:13:35,581 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:13:35,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 08:13:35,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:13:35,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:13:35,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:13:35,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:13:35,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:13:35,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 08:13:35,585 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 08:13:35,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 08:13:35,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 08:13:35,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:13:35,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:13:35,586 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_a6416ac6-a9b2-4629-aed1-ec1ee2613594/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 310063ef643a90e947dd66ba142cc8ae546f077a [2021-10-13 08:13:35,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:13:35,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:13:35,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:13:35,884 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:13:35,885 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:13:35,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2021-10-13 08:13:35,946 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/data/6bdd4fec5/97c4fd6949874d4c8c112b50e03eed27/FLAG40ac531f2 [2021-10-13 08:13:36,556 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:13:36,567 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2021-10-13 08:13:36,585 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/data/6bdd4fec5/97c4fd6949874d4c8c112b50e03eed27/FLAG40ac531f2 [2021-10-13 08:13:36,838 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/data/6bdd4fec5/97c4fd6949874d4c8c112b50e03eed27 [2021-10-13 08:13:36,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:13:36,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:13:36,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:13:36,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:13:36,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:13:36,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:13:36" (1/1) ... [2021-10-13 08:13:36,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59457fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:36, skipping insertion in model container [2021-10-13 08:13:36,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:13:36" (1/1) ... [2021-10-13 08:13:36,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:13:36,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:13:37,157 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_a6416ac6-a9b2-4629-aed1-ec1ee2613594/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c[37270,37283] [2021-10-13 08:13:37,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:13:37,173 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 08:13:37,255 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_a6416ac6-a9b2-4629-aed1-ec1ee2613594/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c[37270,37283] [2021-10-13 08:13:37,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:13:37,280 INFO L208 MainTranslator]: Completed translation [2021-10-13 08:13:37,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:37 WrapperNode [2021-10-13 08:13:37,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:13:37,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 08:13:37,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 08:13:37,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 08:13:37,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:37" (1/1) ... [2021-10-13 08:13:37,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:37" (1/1) ... [2021-10-13 08:13:37,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 08:13:37,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 08:13:37,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 08:13:37,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 08:13:37,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:37" (1/1) ... [2021-10-13 08:13:37,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:37" (1/1) ... [2021-10-13 08:13:37,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:37" (1/1) ... [2021-10-13 08:13:37,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:37" (1/1) ... [2021-10-13 08:13:37,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:37" (1/1) ... [2021-10-13 08:13:37,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:37" (1/1) ... [2021-10-13 08:13:37,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:37" (1/1) ... [2021-10-13 08:13:37,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 08:13:37,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 08:13:37,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 08:13:37,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 08:13:37,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:37" (1/1) ... [2021-10-13 08:13:37,495 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:13:37,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:13:37,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 08:13:37,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 08:13:37,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 08:13:37,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 08:13:37,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 08:13:37,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 08:13:37,672 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 08:13:38,120 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-10-13 08:13:38,120 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-10-13 08:13:38,640 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 08:13:38,640 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 08:13:38,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:13:38 BoogieIcfgContainer [2021-10-13 08:13:38,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 08:13:38,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 08:13:38,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 08:13:38,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 08:13:38,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:13:36" (1/3) ... [2021-10-13 08:13:38,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52f9062d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:13:38, skipping insertion in model container [2021-10-13 08:13:38,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:37" (2/3) ... [2021-10-13 08:13:38,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52f9062d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:13:38, skipping insertion in model container [2021-10-13 08:13:38,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:13:38" (3/3) ... [2021-10-13 08:13:38,653 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.BV.c.cil-1a.c [2021-10-13 08:13:38,659 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 08:13:38,660 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 08:13:38,726 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 08:13:38,735 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 08:13:38,735 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 08:13:38,760 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 82 states have (on average 1.7682926829268293) internal successors, (145), 83 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:38,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 08:13:38,776 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:38,777 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:38,777 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:13:38,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:38,782 INFO L82 PathProgramCache]: Analyzing trace with hash 70311567, now seen corresponding path program 1 times [2021-10-13 08:13:38,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:13:38,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166542519] [2021-10-13 08:13:38,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:38,794 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:13:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:39,060 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 08:13:39,060 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:13:39,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166542519] [2021-10-13 08:13:39,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166542519] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:39,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:39,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 08:13:39,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587842488] [2021-10-13 08:13:39,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:13:39,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 08:13:39,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:13:39,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:39,097 INFO L87 Difference]: Start difference. First operand has 84 states, 82 states have (on average 1.7682926829268293) internal successors, (145), 83 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:39,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:39,289 INFO L93 Difference]: Finished difference Result 169 states and 293 transitions. [2021-10-13 08:13:39,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:13:39,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-13 08:13:39,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:39,304 INFO L225 Difference]: With dead ends: 169 [2021-10-13 08:13:39,304 INFO L226 Difference]: Without dead ends: 83 [2021-10-13 08:13:39,308 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:39,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-10-13 08:13:39,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-10-13 08:13:39,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.4634146341463414) internal successors, (120), 82 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:39,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 120 transitions. [2021-10-13 08:13:39,364 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 120 transitions. Word has length 19 [2021-10-13 08:13:39,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:39,365 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 120 transitions. [2021-10-13 08:13:39,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:39,366 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 120 transitions. [2021-10-13 08:13:39,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 08:13:39,367 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:39,368 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:39,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 08:13:39,368 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:13:39,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:39,372 INFO L82 PathProgramCache]: Analyzing trace with hash 205833436, now seen corresponding path program 1 times [2021-10-13 08:13:39,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:13:39,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952310474] [2021-10-13 08:13:39,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:39,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:13:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:39,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:39,514 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:13:39,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952310474] [2021-10-13 08:13:39,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952310474] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:39,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:39,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 08:13:39,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55586371] [2021-10-13 08:13:39,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:13:39,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 08:13:39,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:13:39,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:39,522 INFO L87 Difference]: Start difference. First operand 83 states and 120 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:39,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:39,699 INFO L93 Difference]: Finished difference Result 178 states and 261 transitions. [2021-10-13 08:13:39,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:13:39,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 08:13:39,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:39,705 INFO L225 Difference]: With dead ends: 178 [2021-10-13 08:13:39,705 INFO L226 Difference]: Without dead ends: 98 [2021-10-13 08:13:39,707 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:39,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-10-13 08:13:39,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2021-10-13 08:13:39,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.431578947368421) internal successors, (136), 95 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:39,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 136 transitions. [2021-10-13 08:13:39,725 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 136 transitions. Word has length 28 [2021-10-13 08:13:39,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:39,726 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 136 transitions. [2021-10-13 08:13:39,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:39,726 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 136 transitions. [2021-10-13 08:13:39,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-13 08:13:39,729 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:39,729 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:39,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 08:13:39,731 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:13:39,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:39,745 INFO L82 PathProgramCache]: Analyzing trace with hash -686300563, now seen corresponding path program 1 times [2021-10-13 08:13:39,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:13:39,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688746274] [2021-10-13 08:13:39,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:39,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:13:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:39,810 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 08:13:39,811 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:13:39,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688746274] [2021-10-13 08:13:39,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688746274] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:39,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:39,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 08:13:39,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309226990] [2021-10-13 08:13:39,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:13:39,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 08:13:39,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:13:39,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:39,814 INFO L87 Difference]: Start difference. First operand 96 states and 136 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:39,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:39,969 INFO L93 Difference]: Finished difference Result 206 states and 297 transitions. [2021-10-13 08:13:39,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:13:39,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-10-13 08:13:39,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:39,973 INFO L225 Difference]: With dead ends: 206 [2021-10-13 08:13:39,973 INFO L226 Difference]: Without dead ends: 113 [2021-10-13 08:13:39,977 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:39,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-13 08:13:39,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2021-10-13 08:13:39,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4) internal successors, (154), 110 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:39,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 154 transitions. [2021-10-13 08:13:39,989 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 154 transitions. Word has length 39 [2021-10-13 08:13:39,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:39,989 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 154 transitions. [2021-10-13 08:13:39,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:39,990 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 154 transitions. [2021-10-13 08:13:40,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-13 08:13:40,000 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:40,001 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:40,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 08:13:40,001 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:13:40,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:40,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1967255269, now seen corresponding path program 1 times [2021-10-13 08:13:40,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:13:40,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098401865] [2021-10-13 08:13:40,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:40,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:13:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:40,129 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 08:13:40,129 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:13:40,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098401865] [2021-10-13 08:13:40,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098401865] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 08:13:40,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087656387] [2021-10-13 08:13:40,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:40,131 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:13:40,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:13:40,132 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:13:40,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 08:13:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:40,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 08:13:40,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:40,618 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-13 08:13:40,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:40,848 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-13 08:13:40,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087656387] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:40,848 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-13 08:13:40,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [4] total 9 [2021-10-13 08:13:40,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584781716] [2021-10-13 08:13:40,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 08:13:40,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 08:13:40,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 08:13:40,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-13 08:13:40,851 INFO L87 Difference]: Start difference. First operand 111 states and 154 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:41,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:41,203 INFO L93 Difference]: Finished difference Result 312 states and 467 transitions. [2021-10-13 08:13:41,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 08:13:41,203 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-10-13 08:13:41,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:41,206 INFO L225 Difference]: With dead ends: 312 [2021-10-13 08:13:41,206 INFO L226 Difference]: Without dead ends: 203 [2021-10-13 08:13:41,207 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 35.5ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-13 08:13:41,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-10-13 08:13:41,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 186. [2021-10-13 08:13:41,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.3783783783783783) internal successors, (255), 185 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:41,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 255 transitions. [2021-10-13 08:13:41,235 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 255 transitions. Word has length 52 [2021-10-13 08:13:41,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:41,235 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 255 transitions. [2021-10-13 08:13:41,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:41,236 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 255 transitions. [2021-10-13 08:13:41,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-13 08:13:41,241 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:41,241 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:41,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:41,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:13:41,455 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:13:41,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:41,456 INFO L82 PathProgramCache]: Analyzing trace with hash -672239485, now seen corresponding path program 1 times [2021-10-13 08:13:41,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:13:41,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336776210] [2021-10-13 08:13:41,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:41,456 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:13:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:41,560 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-13 08:13:41,560 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:13:41,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336776210] [2021-10-13 08:13:41,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336776210] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:41,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:41,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 08:13:41,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677217590] [2021-10-13 08:13:41,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:13:41,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 08:13:41,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:13:41,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:41,563 INFO L87 Difference]: Start difference. First operand 186 states and 255 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:41,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:41,659 INFO L93 Difference]: Finished difference Result 390 states and 543 transitions. [2021-10-13 08:13:41,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:13:41,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-10-13 08:13:41,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:41,662 INFO L225 Difference]: With dead ends: 390 [2021-10-13 08:13:41,662 INFO L226 Difference]: Without dead ends: 207 [2021-10-13 08:13:41,663 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:41,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-10-13 08:13:41,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 205. [2021-10-13 08:13:41,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.357843137254902) internal successors, (277), 204 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:41,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2021-10-13 08:13:41,671 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 67 [2021-10-13 08:13:41,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:41,671 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2021-10-13 08:13:41,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:41,672 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2021-10-13 08:13:41,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-10-13 08:13:41,673 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:41,673 INFO L512 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:41,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 08:13:41,673 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:13:41,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:41,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1956777873, now seen corresponding path program 1 times [2021-10-13 08:13:41,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:13:41,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390476219] [2021-10-13 08:13:41,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:41,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:13:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:41,812 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-13 08:13:41,812 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:13:41,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390476219] [2021-10-13 08:13:41,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390476219] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 08:13:41,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557766533] [2021-10-13 08:13:41,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:41,813 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:13:41,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:13:41,824 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:13:41,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 08:13:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:41,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 08:13:41,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:42,253 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-10-13 08:13:42,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:42,581 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-10-13 08:13:42,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557766533] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:13:42,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2060853030] [2021-10-13 08:13:42,613 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2021-10-13 08:13:42,613 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 08:13:42,623 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 08:13:42,629 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 08:13:42,630 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 08:13:42,799 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:13:42,809 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 08:13:42,810 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:13:42,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 08:13:42,812 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 08:13:42,813 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:13:42,814 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 08:13:42,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 323 [2021-10-13 08:13:42,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 08:13:42,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 08:13:42,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 08:13:42,942 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 08:13:42,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:13:42,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 08:13:42,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:13:42,945 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 08:13:42,945 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 08:13:42,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 08:13:42,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 08:13:42,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 08:13:42,976 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 08:13:42,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:13:42,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 08:13:42,978 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:13:42,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 08:13:42,979 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-13 08:13:43,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 08:13:43,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 08:13:43,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 08:13:43,019 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 08:13:43,019 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:13:43,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 08:13:43,021 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:13:43,028 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 08:13:43,029 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-13 08:13:43,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:13:43,195 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:13:43,247 INFO L180 QuantifierPusher]: treesize reduction 18, result has 98.0 percent of original size [2021-10-13 08:13:43,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 891 [2021-10-13 08:13:43,280 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-10-13 08:13:43,281 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:900, output treesize:891 [2021-10-13 08:13:43,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:43,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:13:43,503 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_18| 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 08:13:43,507 INFO L168 Benchmark]: Toolchain (without parser) took 6663.70 ms. Allocated memory was 94.4 MB in the beginning and 144.7 MB in the end (delta: 50.3 MB). Free memory was 69.8 MB in the beginning and 53.5 MB in the end (delta: 16.2 MB). Peak memory consumption was 66.4 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:43,507 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 77.6 MB. Free memory was 50.8 MB in the beginning and 50.8 MB in the end (delta: 34.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:13:43,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.63 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 62.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:43,508 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.70 ms. Allocated memory is still 94.4 MB. Free memory was 62.6 MB in the beginning and 59.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:43,509 INFO L168 Benchmark]: Boogie Preprocessor took 79.00 ms. Allocated memory is still 94.4 MB. Free memory was 59.8 MB in the beginning and 57.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:43,509 INFO L168 Benchmark]: RCFGBuilder took 1156.34 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 57.9 MB in the beginning and 85.8 MB in the end (delta: -27.9 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:43,510 INFO L168 Benchmark]: TraceAbstraction took 4861.04 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 84.9 MB in the beginning and 53.5 MB in the end (delta: 31.3 MB). Peak memory consumption was 56.8 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:43,513 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 77.6 MB. Free memory was 50.8 MB in the beginning and 50.8 MB in the end (delta: 34.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 437.63 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 62.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.70 ms. Allocated memory is still 94.4 MB. Free memory was 62.6 MB in the beginning and 59.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.00 ms. Allocated memory is still 94.4 MB. Free memory was 59.8 MB in the beginning and 57.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1156.34 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 57.9 MB in the beginning and 85.8 MB in the end (delta: -27.9 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4861.04 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 84.9 MB in the beginning and 53.5 MB in the end (delta: 31.3 MB). Peak memory consumption was 56.8 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_18| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_18|: 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 08:13:43,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/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 08:13:45,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:13:45,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:13:46,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:13:46,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:13:46,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:13:46,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:13:46,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:13:46,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:13:46,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:13:46,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:13:46,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:13:46,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:13:46,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:13:46,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:13:46,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:13:46,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:13:46,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:13:46,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:13:46,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:13:46,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:13:46,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:13:46,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:13:46,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:13:46,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:13:46,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:13:46,105 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:13:46,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:13:46,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:13:46,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:13:46,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:13:46,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:13:46,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:13:46,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:13:46,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:13:46,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:13:46,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:13:46,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:13:46,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:13:46,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:13:46,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:13:46,116 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 08:13:46,140 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:13:46,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:13:46,141 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:13:46,141 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:13:46,141 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:13:46,141 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:13:46,142 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:13:46,142 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:13:46,142 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:13:46,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:13:46,143 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:13:46,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:13:46,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:13:46,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 08:13:46,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:13:46,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 08:13:46,144 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:13:46,145 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 08:13:46,145 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 08:13:46,145 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:13:46,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 08:13:46,146 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:13:46,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 08:13:46,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:13:46,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 08:13:46,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:13:46,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:13:46,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:13:46,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:13:46,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 08:13:46,148 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 08:13:46,148 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 08:13:46,148 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 08:13:46,148 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:13:46,149 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:13:46,149 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_a6416ac6-a9b2-4629-aed1-ec1ee2613594/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 310063ef643a90e947dd66ba142cc8ae546f077a [2021-10-13 08:13:46,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:13:46,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:13:46,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:13:46,520 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:13:46,521 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:13:46,521 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2021-10-13 08:13:46,598 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/data/831053c50/c721af79bb5a4e9fa02c73e12366ffb2/FLAGc33618574 [2021-10-13 08:13:47,132 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:13:47,133 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2021-10-13 08:13:47,145 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/data/831053c50/c721af79bb5a4e9fa02c73e12366ffb2/FLAGc33618574 [2021-10-13 08:13:47,493 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/data/831053c50/c721af79bb5a4e9fa02c73e12366ffb2 [2021-10-13 08:13:47,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:13:47,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:13:47,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:13:47,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:13:47,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:13:47,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:13:47" (1/1) ... [2021-10-13 08:13:47,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b02ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:47, skipping insertion in model container [2021-10-13 08:13:47,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:13:47" (1/1) ... [2021-10-13 08:13:47,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:13:47,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:13:47,803 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_a6416ac6-a9b2-4629-aed1-ec1ee2613594/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c[37270,37283] [2021-10-13 08:13:47,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:13:47,842 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 08:13:47,963 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_a6416ac6-a9b2-4629-aed1-ec1ee2613594/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c[37270,37283] [2021-10-13 08:13:47,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:13:47,993 INFO L208 MainTranslator]: Completed translation [2021-10-13 08:13:47,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:47 WrapperNode [2021-10-13 08:13:47,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:13:47,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 08:13:47,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 08:13:47,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 08:13:48,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:47" (1/1) ... [2021-10-13 08:13:48,029 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:47" (1/1) ... [2021-10-13 08:13:48,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 08:13:48,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 08:13:48,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 08:13:48,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 08:13:48,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:47" (1/1) ... [2021-10-13 08:13:48,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:47" (1/1) ... [2021-10-13 08:13:48,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:47" (1/1) ... [2021-10-13 08:13:48,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:47" (1/1) ... [2021-10-13 08:13:48,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:47" (1/1) ... [2021-10-13 08:13:48,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:47" (1/1) ... [2021-10-13 08:13:48,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:47" (1/1) ... [2021-10-13 08:13:48,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 08:13:48,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 08:13:48,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 08:13:48,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 08:13:48,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:47" (1/1) ... [2021-10-13 08:13:48,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:13:48,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:13:48,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 08:13:48,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 08:13:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 08:13:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 08:13:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 08:13:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 08:13:48,435 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 08:13:49,048 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-10-13 08:13:49,048 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-10-13 08:13:49,058 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 08:13:49,058 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 08:13:49,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:13:49 BoogieIcfgContainer [2021-10-13 08:13:49,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 08:13:49,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 08:13:49,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 08:13:49,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 08:13:49,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:13:47" (1/3) ... [2021-10-13 08:13:49,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16e737d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:13:49, skipping insertion in model container [2021-10-13 08:13:49,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:47" (2/3) ... [2021-10-13 08:13:49,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16e737d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:13:49, skipping insertion in model container [2021-10-13 08:13:49,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:13:49" (3/3) ... [2021-10-13 08:13:49,076 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.BV.c.cil-1a.c [2021-10-13 08:13:49,084 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 08:13:49,084 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 08:13:49,151 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 08:13:49,160 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 08:13:49,160 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 08:13:49,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 123 states have (on average 1.7317073170731707) internal successors, (213), 124 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:49,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 08:13:49,202 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:49,203 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:49,204 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:13:49,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:49,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1457697026, now seen corresponding path program 1 times [2021-10-13 08:13:49,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:49,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [811784198] [2021-10-13 08:13:49,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:49,234 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:49,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:49,237 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:49,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 08:13:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:49,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:13:49,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:49,549 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 08:13:49,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:49,694 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 08:13:49,695 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:49,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [811784198] [2021-10-13 08:13:49,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [811784198] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:49,697 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:49,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 08:13:49,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988651228] [2021-10-13 08:13:49,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:13:49,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:49,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:13:49,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:49,725 INFO L87 Difference]: Start difference. First operand has 125 states, 123 states have (on average 1.7317073170731707) internal successors, (213), 124 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:49,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:49,930 INFO L93 Difference]: Finished difference Result 246 states and 421 transitions. [2021-10-13 08:13:49,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:13:49,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-13 08:13:49,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:49,956 INFO L225 Difference]: With dead ends: 246 [2021-10-13 08:13:49,970 INFO L226 Difference]: Without dead ends: 112 [2021-10-13 08:13:49,974 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:49,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-10-13 08:13:50,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2021-10-13 08:13:50,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.5225225225225225) internal successors, (169), 111 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:50,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 169 transitions. [2021-10-13 08:13:50,022 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 169 transitions. Word has length 24 [2021-10-13 08:13:50,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:50,023 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 169 transitions. [2021-10-13 08:13:50,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:50,024 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 169 transitions. [2021-10-13 08:13:50,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-13 08:13:50,025 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:50,026 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:50,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:50,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:13:50,238 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:13:50,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:50,239 INFO L82 PathProgramCache]: Analyzing trace with hash -611475394, now seen corresponding path program 1 times [2021-10-13 08:13:50,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:50,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562943441] [2021-10-13 08:13:50,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:50,240 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:50,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:50,241 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:50,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 08:13:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:50,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:13:50,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:50,514 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:50,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:50,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:50,651 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:50,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562943441] [2021-10-13 08:13:50,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562943441] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:50,652 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:50,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 08:13:50,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908958050] [2021-10-13 08:13:50,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:13:50,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:50,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:13:50,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:50,658 INFO L87 Difference]: Start difference. First operand 112 states and 169 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:50,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:50,868 INFO L93 Difference]: Finished difference Result 233 states and 356 transitions. [2021-10-13 08:13:50,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:13:50,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-10-13 08:13:50,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:50,881 INFO L225 Difference]: With dead ends: 233 [2021-10-13 08:13:50,881 INFO L226 Difference]: Without dead ends: 131 [2021-10-13 08:13:50,884 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:50,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-13 08:13:50,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 127. [2021-10-13 08:13:50,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.5) internal successors, (189), 126 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:50,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 189 transitions. [2021-10-13 08:13:50,922 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 189 transitions. Word has length 36 [2021-10-13 08:13:50,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:50,923 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 189 transitions. [2021-10-13 08:13:50,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:50,924 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 189 transitions. [2021-10-13 08:13:50,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-13 08:13:50,927 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:50,927 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:50,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:51,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:13:51,142 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:13:51,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:51,143 INFO L82 PathProgramCache]: Analyzing trace with hash 213639527, now seen corresponding path program 1 times [2021-10-13 08:13:51,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:51,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1633109856] [2021-10-13 08:13:51,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:51,144 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:51,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:51,147 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:51,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 08:13:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:51,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:13:51,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:51,428 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 08:13:51,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:51,564 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 08:13:51,564 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:51,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1633109856] [2021-10-13 08:13:51,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1633109856] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:51,565 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:51,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 08:13:51,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536302621] [2021-10-13 08:13:51,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:13:51,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:51,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:13:51,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:51,572 INFO L87 Difference]: Start difference. First operand 127 states and 189 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:51,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:51,728 INFO L93 Difference]: Finished difference Result 265 states and 400 transitions. [2021-10-13 08:13:51,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:13:51,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-10-13 08:13:51,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:51,731 INFO L225 Difference]: With dead ends: 265 [2021-10-13 08:13:51,731 INFO L226 Difference]: Without dead ends: 148 [2021-10-13 08:13:51,732 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:51,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-10-13 08:13:51,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2021-10-13 08:13:51,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.4755244755244756) internal successors, (211), 143 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:51,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 211 transitions. [2021-10-13 08:13:51,745 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 211 transitions. Word has length 50 [2021-10-13 08:13:51,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:51,746 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 211 transitions. [2021-10-13 08:13:51,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:51,746 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 211 transitions. [2021-10-13 08:13:51,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-13 08:13:51,749 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:51,749 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:51,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:51,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:13:51,959 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:13:51,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:51,959 INFO L82 PathProgramCache]: Analyzing trace with hash 370823208, now seen corresponding path program 1 times [2021-10-13 08:13:51,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:51,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298982024] [2021-10-13 08:13:51,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:51,964 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:51,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:51,966 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:51,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 08:13:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:52,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:13:52,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:52,297 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 08:13:52,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:52,478 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 08:13:52,479 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:52,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [298982024] [2021-10-13 08:13:52,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [298982024] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:52,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:52,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:13:52,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733474819] [2021-10-13 08:13:52,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:13:52,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:52,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:13:52,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:13:52,484 INFO L87 Difference]: Start difference. First operand 144 states and 211 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:52,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:52,740 INFO L93 Difference]: Finished difference Result 349 states and 534 transitions. [2021-10-13 08:13:52,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:13:52,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-10-13 08:13:52,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:52,743 INFO L225 Difference]: With dead ends: 349 [2021-10-13 08:13:52,744 INFO L226 Difference]: Without dead ends: 215 [2021-10-13 08:13:52,745 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:13:52,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-10-13 08:13:52,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 207. [2021-10-13 08:13:52,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.441747572815534) internal successors, (297), 206 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:52,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 297 transitions. [2021-10-13 08:13:52,762 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 297 transitions. Word has length 67 [2021-10-13 08:13:52,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:52,763 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 297 transitions. [2021-10-13 08:13:52,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:52,764 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 297 transitions. [2021-10-13 08:13:52,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-13 08:13:52,766 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:52,767 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:52,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:52,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:13:52,978 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:13:52,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:52,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1528022105, now seen corresponding path program 1 times [2021-10-13 08:13:52,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:52,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1965299012] [2021-10-13 08:13:52,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:52,979 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:52,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:52,980 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:52,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 08:13:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:53,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:13:53,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:53,319 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 08:13:53,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:53,452 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 08:13:53,453 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:53,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1965299012] [2021-10-13 08:13:53,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1965299012] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:53,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:53,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 08:13:53,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105139612] [2021-10-13 08:13:53,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:13:53,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:53,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:13:53,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:53,461 INFO L87 Difference]: Start difference. First operand 207 states and 297 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:53,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:53,589 INFO L93 Difference]: Finished difference Result 427 states and 620 transitions. [2021-10-13 08:13:53,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:13:53,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-10-13 08:13:53,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:53,592 INFO L225 Difference]: With dead ends: 427 [2021-10-13 08:13:53,592 INFO L226 Difference]: Without dead ends: 230 [2021-10-13 08:13:53,593 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:53,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-10-13 08:13:53,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 226. [2021-10-13 08:13:53,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.4266666666666667) internal successors, (321), 225 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:53,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 321 transitions. [2021-10-13 08:13:53,607 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 321 transitions. Word has length 68 [2021-10-13 08:13:53,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:53,608 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 321 transitions. [2021-10-13 08:13:53,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:53,609 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 321 transitions. [2021-10-13 08:13:53,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-10-13 08:13:53,612 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:53,613 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:53,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:53,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:13:53,829 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:13:53,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:53,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1678422895, now seen corresponding path program 1 times [2021-10-13 08:13:53,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:53,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [764774335] [2021-10-13 08:13:53,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:53,831 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:53,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:53,832 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:53,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 08:13:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:54,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:13:54,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:54,224 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-10-13 08:13:54,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:54,399 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-10-13 08:13:54,400 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:54,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [764774335] [2021-10-13 08:13:54,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [764774335] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:54,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:54,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 08:13:54,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880139073] [2021-10-13 08:13:54,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:13:54,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:54,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:13:54,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:54,402 INFO L87 Difference]: Start difference. First operand 226 states and 321 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:54,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:54,529 INFO L93 Difference]: Finished difference Result 466 states and 670 transitions. [2021-10-13 08:13:54,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:13:54,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-10-13 08:13:54,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:54,537 INFO L225 Difference]: With dead ends: 466 [2021-10-13 08:13:54,538 INFO L226 Difference]: Without dead ends: 250 [2021-10-13 08:13:54,538 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:54,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-13 08:13:54,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 247. [2021-10-13 08:13:54,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 246 states have (on average 1.410569105691057) internal successors, (347), 246 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:54,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 347 transitions. [2021-10-13 08:13:54,549 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 347 transitions. Word has length 84 [2021-10-13 08:13:54,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:54,550 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 347 transitions. [2021-10-13 08:13:54,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:54,550 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 347 transitions. [2021-10-13 08:13:54,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-10-13 08:13:54,552 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:54,552 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:54,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:54,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:13:54,764 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:13:54,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:54,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1619803512, now seen corresponding path program 1 times [2021-10-13 08:13:54,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:54,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015762103] [2021-10-13 08:13:54,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:54,766 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:54,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:54,767 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:54,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 08:13:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:55,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:13:55,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:55,280 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 08:13:55,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:55,537 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 08:13:55,537 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:55,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015762103] [2021-10-13 08:13:55,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015762103] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:55,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:55,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:13:55,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118616735] [2021-10-13 08:13:55,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:13:55,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:55,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:13:55,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:13:55,542 INFO L87 Difference]: Start difference. First operand 247 states and 347 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:55,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:55,597 INFO L93 Difference]: Finished difference Result 743 states and 1042 transitions. [2021-10-13 08:13:55,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:13:55,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-10-13 08:13:55,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:55,602 INFO L225 Difference]: With dead ends: 743 [2021-10-13 08:13:55,602 INFO L226 Difference]: Without dead ends: 506 [2021-10-13 08:13:55,603 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:13:55,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2021-10-13 08:13:55,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2021-10-13 08:13:55,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.39009900990099) internal successors, (702), 505 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:55,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 702 transitions. [2021-10-13 08:13:55,623 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 702 transitions. Word has length 103 [2021-10-13 08:13:55,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:55,624 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 702 transitions. [2021-10-13 08:13:55,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:55,625 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 702 transitions. [2021-10-13 08:13:55,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-10-13 08:13:55,627 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:55,628 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:55,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:55,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:13:55,840 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:13:55,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:55,841 INFO L82 PathProgramCache]: Analyzing trace with hash -847602632, now seen corresponding path program 1 times [2021-10-13 08:13:55,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:55,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278607092] [2021-10-13 08:13:55,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:55,842 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:55,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:55,843 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:55,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 08:13:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:56,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:13:56,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:56,459 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-13 08:13:56,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:56,711 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-13 08:13:56,711 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:56,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278607092] [2021-10-13 08:13:56,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1278607092] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:56,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:56,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 08:13:56,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698747051] [2021-10-13 08:13:56,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:13:56,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:56,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:13:56,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:56,714 INFO L87 Difference]: Start difference. First operand 506 states and 702 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:56,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:56,750 INFO L93 Difference]: Finished difference Result 1023 states and 1418 transitions. [2021-10-13 08:13:56,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:13:56,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-10-13 08:13:56,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:56,755 INFO L225 Difference]: With dead ends: 1023 [2021-10-13 08:13:56,755 INFO L226 Difference]: Without dead ends: 527 [2021-10-13 08:13:56,757 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:56,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2021-10-13 08:13:56,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2021-10-13 08:13:56,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 526 states have (on average 1.3859315589353611) internal successors, (729), 526 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:56,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 729 transitions. [2021-10-13 08:13:56,779 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 729 transitions. Word has length 103 [2021-10-13 08:13:56,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:56,780 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 729 transitions. [2021-10-13 08:13:56,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:56,781 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 729 transitions. [2021-10-13 08:13:56,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-10-13 08:13:56,791 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:56,792 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:56,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:56,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:13:56,999 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:13:56,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:57,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1168582955, now seen corresponding path program 1 times [2021-10-13 08:13:57,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:57,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1188961819] [2021-10-13 08:13:57,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:57,001 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:57,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:57,003 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:57,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 08:13:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:57,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:13:57,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:57,567 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-13 08:13:57,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:57,805 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-13 08:13:57,806 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:57,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1188961819] [2021-10-13 08:13:57,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1188961819] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:57,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:57,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 08:13:57,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785027734] [2021-10-13 08:13:57,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:13:57,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:57,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:13:57,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:57,808 INFO L87 Difference]: Start difference. First operand 527 states and 729 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:57,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:57,839 INFO L93 Difference]: Finished difference Result 1070 states and 1478 transitions. [2021-10-13 08:13:57,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:13:57,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-10-13 08:13:57,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:57,843 INFO L225 Difference]: With dead ends: 1070 [2021-10-13 08:13:57,843 INFO L226 Difference]: Without dead ends: 553 [2021-10-13 08:13:57,844 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:57,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2021-10-13 08:13:57,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2021-10-13 08:13:57,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 552 states have (on average 1.3804347826086956) internal successors, (762), 552 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:57,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 762 transitions. [2021-10-13 08:13:57,870 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 762 transitions. Word has length 104 [2021-10-13 08:13:57,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:57,870 INFO L470 AbstractCegarLoop]: Abstraction has 553 states and 762 transitions. [2021-10-13 08:13:57,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:57,871 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 762 transitions. [2021-10-13 08:13:57,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-13 08:13:57,872 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:57,872 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:57,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:58,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:13:58,085 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:13:58,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:58,085 INFO L82 PathProgramCache]: Analyzing trace with hash -53319870, now seen corresponding path program 1 times [2021-10-13 08:13:58,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:58,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118329417] [2021-10-13 08:13:58,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:58,087 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:58,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:58,088 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:58,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 08:13:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:58,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:13:58,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:58,710 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-10-13 08:13:58,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:58,899 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-10-13 08:13:58,899 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:58,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118329417] [2021-10-13 08:13:58,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118329417] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:58,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:58,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:13:58,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818645764] [2021-10-13 08:13:58,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:13:58,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:58,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:13:58,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:13:58,901 INFO L87 Difference]: Start difference. First operand 553 states and 762 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:58,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:58,985 INFO L93 Difference]: Finished difference Result 1520 states and 2113 transitions. [2021-10-13 08:13:58,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:13:58,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-10-13 08:13:58,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:58,992 INFO L225 Difference]: With dead ends: 1520 [2021-10-13 08:13:58,993 INFO L226 Difference]: Without dead ends: 1003 [2021-10-13 08:13:58,996 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:13:58,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2021-10-13 08:13:59,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2021-10-13 08:13:59,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 1002 states have (on average 1.3892215568862276) internal successors, (1392), 1002 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1392 transitions. [2021-10-13 08:13:59,033 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1392 transitions. Word has length 105 [2021-10-13 08:13:59,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:59,033 INFO L470 AbstractCegarLoop]: Abstraction has 1003 states and 1392 transitions. [2021-10-13 08:13:59,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:13:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1392 transitions. [2021-10-13 08:13:59,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-10-13 08:13:59,041 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:59,041 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:59,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:59,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:13:59,253 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:13:59,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:59,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1519363111, now seen corresponding path program 1 times [2021-10-13 08:13:59,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:59,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244603005] [2021-10-13 08:13:59,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:59,255 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:59,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:59,256 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:59,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 08:13:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:59,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:13:59,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:00,074 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-10-13 08:14:00,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:00,465 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-10-13 08:14:00,466 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:00,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244603005] [2021-10-13 08:14:00,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244603005] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:00,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:00,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:14:00,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956055151] [2021-10-13 08:14:00,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:14:00,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:00,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:14:00,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:00,469 INFO L87 Difference]: Start difference. First operand 1003 states and 1392 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:00,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:00,691 INFO L93 Difference]: Finished difference Result 2091 states and 2938 transitions. [2021-10-13 08:14:00,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:14:00,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2021-10-13 08:14:00,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:00,699 INFO L225 Difference]: With dead ends: 2091 [2021-10-13 08:14:00,699 INFO L226 Difference]: Without dead ends: 1124 [2021-10-13 08:14:00,701 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:00,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2021-10-13 08:14:00,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1095. [2021-10-13 08:14:00,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 1094 states have (on average 1.3711151736745886) internal successors, (1500), 1094 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:00,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1500 transitions. [2021-10-13 08:14:00,751 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1500 transitions. Word has length 173 [2021-10-13 08:14:00,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:00,751 INFO L470 AbstractCegarLoop]: Abstraction has 1095 states and 1500 transitions. [2021-10-13 08:14:00,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:00,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1500 transitions. [2021-10-13 08:14:00,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-10-13 08:14:00,756 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:00,756 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:00,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:00,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:00,983 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:00,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:00,984 INFO L82 PathProgramCache]: Analyzing trace with hash -759567935, now seen corresponding path program 1 times [2021-10-13 08:14:00,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:00,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666753897] [2021-10-13 08:14:00,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:00,985 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:00,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:00,985 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:00,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-13 08:14:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:01,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 08:14:01,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:02,023 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 456 proven. 20 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-10-13 08:14:02,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:02,551 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 440 proven. 36 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-10-13 08:14:02,551 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:02,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666753897] [2021-10-13 08:14:02,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666753897] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:14:02,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1845354817] [2021-10-13 08:14:02,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:02,552 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:14:02,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:14:02,555 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:14:02,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-10-13 08:14:03,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:03,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:14:03,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:03,841 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2021-10-13 08:14:03,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:04,304 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2021-10-13 08:14:04,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1845354817] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:04,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 08:14:04,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-10-13 08:14:04,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464813298] [2021-10-13 08:14:04,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:14:04,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:04,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:14:04,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-13 08:14:04,306 INFO L87 Difference]: Start difference. First operand 1095 states and 1500 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:04,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:04,380 INFO L93 Difference]: Finished difference Result 2409 states and 3304 transitions. [2021-10-13 08:14:04,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:14:04,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 194 [2021-10-13 08:14:04,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:04,388 INFO L225 Difference]: With dead ends: 2409 [2021-10-13 08:14:04,388 INFO L226 Difference]: Without dead ends: 1350 [2021-10-13 08:14:04,390 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 772 GetRequests, 765 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 39.9ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-13 08:14:04,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2021-10-13 08:14:04,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1350. [2021-10-13 08:14:04,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1350 states, 1349 states have (on average 1.369162342475908) internal successors, (1847), 1349 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:04,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1847 transitions. [2021-10-13 08:14:04,438 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1847 transitions. Word has length 194 [2021-10-13 08:14:04,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:04,439 INFO L470 AbstractCegarLoop]: Abstraction has 1350 states and 1847 transitions. [2021-10-13 08:14:04,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:04,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1847 transitions. [2021-10-13 08:14:04,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-10-13 08:14:04,443 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:04,444 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:04,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:04,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:04,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:04,847 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:04,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:04,848 INFO L82 PathProgramCache]: Analyzing trace with hash 342847369, now seen corresponding path program 1 times [2021-10-13 08:14:04,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:04,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548085167] [2021-10-13 08:14:04,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:04,849 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:04,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:04,850 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:04,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-13 08:14:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:05,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 08:14:05,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:06,063 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 458 proven. 20 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-10-13 08:14:06,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:06,559 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 442 proven. 36 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-10-13 08:14:06,559 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:06,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1548085167] [2021-10-13 08:14:06,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1548085167] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:14:06,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [910017308] [2021-10-13 08:14:06,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:06,562 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:14:06,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:14:06,563 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:14:06,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-10-13 08:14:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:07,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 08:14:07,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:08,191 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 458 proven. 20 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-10-13 08:14:08,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:08,746 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 442 proven. 36 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-10-13 08:14:08,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [910017308] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:14:08,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101516795] [2021-10-13 08:14:08,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:08,747 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:14:08,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:14:08,759 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:14:08,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-13 08:14:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:09,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 08:14:09,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:10,312 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 458 proven. 20 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-10-13 08:14:10,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:10,778 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 442 proven. 36 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-10-13 08:14:10,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101516795] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:14:10,778 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 08:14:10,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2021-10-13 08:14:10,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436881204] [2021-10-13 08:14:10,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 08:14:10,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:10,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 08:14:10,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-13 08:14:10,781 INFO L87 Difference]: Start difference. First operand 1350 states and 1847 transitions. Second operand has 8 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:11,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:11,407 INFO L93 Difference]: Finished difference Result 3072 states and 4244 transitions. [2021-10-13 08:14:11,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 08:14:11,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2021-10-13 08:14:11,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:11,418 INFO L225 Difference]: With dead ends: 3072 [2021-10-13 08:14:11,418 INFO L226 Difference]: Without dead ends: 1779 [2021-10-13 08:14:11,420 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1176 GetRequests, 1167 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 58.9ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-10-13 08:14:11,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2021-10-13 08:14:11,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 1663. [2021-10-13 08:14:11,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1663 states, 1662 states have (on average 1.362214199759326) internal successors, (2264), 1662 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:11,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1663 states to 1663 states and 2264 transitions. [2021-10-13 08:14:11,509 INFO L78 Accepts]: Start accepts. Automaton has 1663 states and 2264 transitions. Word has length 196 [2021-10-13 08:14:11,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:11,510 INFO L470 AbstractCegarLoop]: Abstraction has 1663 states and 2264 transitions. [2021-10-13 08:14:11,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:11,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1663 states and 2264 transitions. [2021-10-13 08:14:11,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-10-13 08:14:11,535 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:11,535 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:11,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:11,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:11,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:12,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:12,151 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:12,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:12,152 INFO L82 PathProgramCache]: Analyzing trace with hash 228275513, now seen corresponding path program 1 times [2021-10-13 08:14:12,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:12,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686334213] [2021-10-13 08:14:12,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:12,153 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:12,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:12,153 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:12,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-13 08:14:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:13,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:14:13,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:13,507 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 463 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-10-13 08:14:13,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:13,878 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 463 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-10-13 08:14:13,878 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:13,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686334213] [2021-10-13 08:14:13,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [686334213] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:13,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:13,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:14:13,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490896970] [2021-10-13 08:14:13,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:14:13,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:13,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:14:13,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:13,880 INFO L87 Difference]: Start difference. First operand 1663 states and 2264 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:14,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:14,141 INFO L93 Difference]: Finished difference Result 3473 states and 4788 transitions. [2021-10-13 08:14:14,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:14:14,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2021-10-13 08:14:14,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:14,152 INFO L225 Difference]: With dead ends: 3473 [2021-10-13 08:14:14,152 INFO L226 Difference]: Without dead ends: 1867 [2021-10-13 08:14:14,154 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:14,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1867 states. [2021-10-13 08:14:14,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1867 to 1831. [2021-10-13 08:14:14,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1831 states, 1830 states have (on average 1.3420765027322403) internal successors, (2456), 1830 states have internal predecessors, (2456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:14,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1831 states to 1831 states and 2456 transitions. [2021-10-13 08:14:14,221 INFO L78 Accepts]: Start accepts. Automaton has 1831 states and 2456 transitions. Word has length 221 [2021-10-13 08:14:14,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:14,221 INFO L470 AbstractCegarLoop]: Abstraction has 1831 states and 2456 transitions. [2021-10-13 08:14:14,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:14,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1831 states and 2456 transitions. [2021-10-13 08:14:14,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-10-13 08:14:14,227 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:14,228 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:14,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:14,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:14,442 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:14,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:14,443 INFO L82 PathProgramCache]: Analyzing trace with hash 629263864, now seen corresponding path program 1 times [2021-10-13 08:14:14,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:14,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528211128] [2021-10-13 08:14:14,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:14,444 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:14,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:14,445 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:14,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-13 08:14:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:15,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:14:15,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:15,936 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-10-13 08:14:15,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:16,419 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-10-13 08:14:16,419 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:16,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528211128] [2021-10-13 08:14:16,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528211128] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:16,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:16,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:14:16,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301302028] [2021-10-13 08:14:16,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:14:16,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:16,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:14:16,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:16,422 INFO L87 Difference]: Start difference. First operand 1831 states and 2456 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:16,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:16,664 INFO L93 Difference]: Finished difference Result 3809 states and 5192 transitions. [2021-10-13 08:14:16,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:14:16,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 232 [2021-10-13 08:14:16,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:16,676 INFO L225 Difference]: With dead ends: 3809 [2021-10-13 08:14:16,677 INFO L226 Difference]: Without dead ends: 2035 [2021-10-13 08:14:16,681 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:16,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2021-10-13 08:14:16,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 2017. [2021-10-13 08:14:16,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2017 states, 2016 states have (on average 1.3224206349206349) internal successors, (2666), 2016 states have internal predecessors, (2666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:16,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2666 transitions. [2021-10-13 08:14:16,757 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2666 transitions. Word has length 232 [2021-10-13 08:14:16,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:16,758 INFO L470 AbstractCegarLoop]: Abstraction has 2017 states and 2666 transitions. [2021-10-13 08:14:16,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:16,758 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2666 transitions. [2021-10-13 08:14:16,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-10-13 08:14:16,765 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:16,765 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:16,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:16,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:16,980 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:16,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:16,980 INFO L82 PathProgramCache]: Analyzing trace with hash -749493446, now seen corresponding path program 1 times [2021-10-13 08:14:16,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:16,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128754056] [2021-10-13 08:14:16,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:16,981 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:16,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:16,982 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:17,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-13 08:14:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:18,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:14:18,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:18,542 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-10-13 08:14:18,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:19,025 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-10-13 08:14:19,025 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:19,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2128754056] [2021-10-13 08:14:19,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2128754056] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:19,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:19,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:14:19,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385330904] [2021-10-13 08:14:19,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:14:19,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:19,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:14:19,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:19,027 INFO L87 Difference]: Start difference. First operand 2017 states and 2666 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:19,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:19,294 INFO L93 Difference]: Finished difference Result 4259 states and 5714 transitions. [2021-10-13 08:14:19,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:14:19,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 262 [2021-10-13 08:14:19,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:19,309 INFO L225 Difference]: With dead ends: 4259 [2021-10-13 08:14:19,310 INFO L226 Difference]: Without dead ends: 2299 [2021-10-13 08:14:19,313 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:19,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2299 states. [2021-10-13 08:14:19,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2299 to 2239. [2021-10-13 08:14:19,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2239 states, 2238 states have (on average 1.3011617515638962) internal successors, (2912), 2238 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:19,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 2912 transitions. [2021-10-13 08:14:19,462 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 2912 transitions. Word has length 262 [2021-10-13 08:14:19,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:19,462 INFO L470 AbstractCegarLoop]: Abstraction has 2239 states and 2912 transitions. [2021-10-13 08:14:19,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:19,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 2912 transitions. [2021-10-13 08:14:19,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-10-13 08:14:19,471 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:19,472 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:19,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:19,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:19,691 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:19,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:19,691 INFO L82 PathProgramCache]: Analyzing trace with hash -120716101, now seen corresponding path program 1 times [2021-10-13 08:14:19,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:19,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240169441] [2021-10-13 08:14:19,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:19,692 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:19,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:19,693 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:19,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-13 08:14:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:20,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:14:20,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:21,449 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 635 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-13 08:14:21,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:22,014 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 635 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-13 08:14:22,014 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:22,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [240169441] [2021-10-13 08:14:22,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [240169441] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:22,015 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:22,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:14:22,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448003569] [2021-10-13 08:14:22,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:14:22,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:22,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:14:22,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:22,017 INFO L87 Difference]: Start difference. First operand 2239 states and 2912 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:22,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:22,158 INFO L93 Difference]: Finished difference Result 8587 states and 11198 transitions. [2021-10-13 08:14:22,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:14:22,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2021-10-13 08:14:22,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:22,192 INFO L225 Difference]: With dead ends: 8587 [2021-10-13 08:14:22,193 INFO L226 Difference]: Without dead ends: 6405 [2021-10-13 08:14:22,197 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:22,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2021-10-13 08:14:22,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 6401. [2021-10-13 08:14:22,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6400 states have (on average 1.303125) internal successors, (8340), 6400 states have internal predecessors, (8340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:22,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 8340 transitions. [2021-10-13 08:14:22,450 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 8340 transitions. Word has length 263 [2021-10-13 08:14:22,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:22,450 INFO L470 AbstractCegarLoop]: Abstraction has 6401 states and 8340 transitions. [2021-10-13 08:14:22,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:22,451 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 8340 transitions. [2021-10-13 08:14:22,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-10-13 08:14:22,487 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:22,488 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:22,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2021-10-13 08:14:22,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:22,697 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:22,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:22,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1096027025, now seen corresponding path program 1 times [2021-10-13 08:14:22,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:22,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984484272] [2021-10-13 08:14:22,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:22,698 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:22,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:22,698 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:22,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-13 08:14:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:23,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:14:23,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:24,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 654 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-10-13 08:14:24,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:24,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 654 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-10-13 08:14:24,950 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:24,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984484272] [2021-10-13 08:14:24,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984484272] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:24,951 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:24,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:14:24,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376878047] [2021-10-13 08:14:24,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:14:24,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:24,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:14:24,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:24,953 INFO L87 Difference]: Start difference. First operand 6401 states and 8340 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:25,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:25,284 INFO L93 Difference]: Finished difference Result 13123 states and 17164 transitions. [2021-10-13 08:14:25,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:14:25,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 287 [2021-10-13 08:14:25,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:25,347 INFO L225 Difference]: With dead ends: 13123 [2021-10-13 08:14:25,348 INFO L226 Difference]: Without dead ends: 6779 [2021-10-13 08:14:25,357 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 570 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:25,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6779 states. [2021-10-13 08:14:25,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6779 to 6599. [2021-10-13 08:14:25,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6599 states, 6598 states have (on average 1.2958472264322523) internal successors, (8550), 6598 states have internal predecessors, (8550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:25,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6599 states to 6599 states and 8550 transitions. [2021-10-13 08:14:25,611 INFO L78 Accepts]: Start accepts. Automaton has 6599 states and 8550 transitions. Word has length 287 [2021-10-13 08:14:25,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:25,611 INFO L470 AbstractCegarLoop]: Abstraction has 6599 states and 8550 transitions. [2021-10-13 08:14:25,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:25,612 INFO L276 IsEmpty]: Start isEmpty. Operand 6599 states and 8550 transitions. [2021-10-13 08:14:25,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2021-10-13 08:14:25,627 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:25,628 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:25,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:25,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:25,844 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:25,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:25,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1966900500, now seen corresponding path program 1 times [2021-10-13 08:14:25,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:25,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [723344915] [2021-10-13 08:14:25,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:25,845 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:25,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:25,846 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:25,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-13 08:14:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:27,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:14:27,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:27,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-10-13 08:14:27,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:28,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-10-13 08:14:28,280 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:28,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [723344915] [2021-10-13 08:14:28,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [723344915] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:28,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:28,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:14:28,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920708945] [2021-10-13 08:14:28,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:14:28,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:28,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:14:28,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:28,283 INFO L87 Difference]: Start difference. First operand 6599 states and 8550 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:28,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:28,632 INFO L93 Difference]: Finished difference Result 13987 states and 18394 transitions. [2021-10-13 08:14:28,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:14:28,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 299 [2021-10-13 08:14:28,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:28,668 INFO L225 Difference]: With dead ends: 13987 [2021-10-13 08:14:28,669 INFO L226 Difference]: Without dead ends: 7445 [2021-10-13 08:14:28,678 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 594 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:28,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7445 states. [2021-10-13 08:14:28,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7445 to 7265. [2021-10-13 08:14:28,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7265 states, 7264 states have (on average 1.27863436123348) internal successors, (9288), 7264 states have internal predecessors, (9288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:28,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7265 states to 7265 states and 9288 transitions. [2021-10-13 08:14:28,933 INFO L78 Accepts]: Start accepts. Automaton has 7265 states and 9288 transitions. Word has length 299 [2021-10-13 08:14:28,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:28,934 INFO L470 AbstractCegarLoop]: Abstraction has 7265 states and 9288 transitions. [2021-10-13 08:14:28,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:28,934 INFO L276 IsEmpty]: Start isEmpty. Operand 7265 states and 9288 transitions. [2021-10-13 08:14:28,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-10-13 08:14:28,949 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:28,949 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:28,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:29,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:29,166 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:29,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:29,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1281776100, now seen corresponding path program 1 times [2021-10-13 08:14:29,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:29,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460197585] [2021-10-13 08:14:29,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:29,168 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:29,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:29,169 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:29,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-13 08:14:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:30,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:14:30,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:31,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 759 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-10-13 08:14:31,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:31,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 759 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-10-13 08:14:31,847 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:31,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1460197585] [2021-10-13 08:14:31,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1460197585] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:31,847 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:31,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:14:31,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852164625] [2021-10-13 08:14:31,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:14:31,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:31,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:14:31,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:31,849 INFO L87 Difference]: Start difference. First operand 7265 states and 9288 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:32,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:32,203 INFO L93 Difference]: Finished difference Result 15373 states and 19960 transitions. [2021-10-13 08:14:32,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:14:32,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 336 [2021-10-13 08:14:32,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:32,220 INFO L225 Difference]: With dead ends: 15373 [2021-10-13 08:14:32,220 INFO L226 Difference]: Without dead ends: 8165 [2021-10-13 08:14:32,227 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:32,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8165 states. [2021-10-13 08:14:32,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8165 to 8003. [2021-10-13 08:14:32,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8003 states, 8002 states have (on average 1.2619345163709073) internal successors, (10098), 8002 states have internal predecessors, (10098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:32,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8003 states to 8003 states and 10098 transitions. [2021-10-13 08:14:32,478 INFO L78 Accepts]: Start accepts. Automaton has 8003 states and 10098 transitions. Word has length 336 [2021-10-13 08:14:32,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:32,478 INFO L470 AbstractCegarLoop]: Abstraction has 8003 states and 10098 transitions. [2021-10-13 08:14:32,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:32,479 INFO L276 IsEmpty]: Start isEmpty. Operand 8003 states and 10098 transitions. [2021-10-13 08:14:32,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2021-10-13 08:14:32,497 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:32,497 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:32,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:32,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:32,711 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:32,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:32,711 INFO L82 PathProgramCache]: Analyzing trace with hash -321729676, now seen corresponding path program 1 times [2021-10-13 08:14:32,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:32,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442214235] [2021-10-13 08:14:32,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:32,712 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:32,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:32,713 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:32,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-13 08:14:34,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:34,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 08:14:34,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:35,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-10-13 08:14:35,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:35,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-10-13 08:14:35,587 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:35,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442214235] [2021-10-13 08:14:35,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442214235] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:14:35,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [291294851] [2021-10-13 08:14:35,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:35,588 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:14:35,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:14:35,589 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:14:35,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2021-10-13 08:14:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:38,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 08:14:38,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:38,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-10-13 08:14:38,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:39,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-10-13 08:14:39,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [291294851] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:14:39,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443891320] [2021-10-13 08:14:39,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:39,370 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:14:39,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:14:39,371 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:14:39,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-13 08:14:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:41,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 08:14:41,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:42,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-10-13 08:14:42,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:42,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-10-13 08:14:42,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443891320] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:14:42,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 08:14:42,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2021-10-13 08:14:42,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109616400] [2021-10-13 08:14:42,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 08:14:42,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:42,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 08:14:42,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 08:14:42,904 INFO L87 Difference]: Start difference. First operand 8003 states and 10098 transitions. Second operand has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:43,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:43,846 INFO L93 Difference]: Finished difference Result 25706 states and 32511 transitions. [2021-10-13 08:14:43,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 08:14:43,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 359 [2021-10-13 08:14:43,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:43,881 INFO L225 Difference]: With dead ends: 25706 [2021-10-13 08:14:43,881 INFO L226 Difference]: Without dead ends: 17760 [2021-10-13 08:14:43,891 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2156 GetRequests, 2148 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 39.9ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-13 08:14:43,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17760 states. [2021-10-13 08:14:44,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17760 to 10930. [2021-10-13 08:14:44,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10930 states, 10929 states have (on average 1.2780675267636563) internal successors, (13968), 10929 states have internal predecessors, (13968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:44,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10930 states to 10930 states and 13968 transitions. [2021-10-13 08:14:44,256 INFO L78 Accepts]: Start accepts. Automaton has 10930 states and 13968 transitions. Word has length 359 [2021-10-13 08:14:44,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:44,256 INFO L470 AbstractCegarLoop]: Abstraction has 10930 states and 13968 transitions. [2021-10-13 08:14:44,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:44,257 INFO L276 IsEmpty]: Start isEmpty. Operand 10930 states and 13968 transitions. [2021-10-13 08:14:44,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2021-10-13 08:14:44,289 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:44,289 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:44,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:44,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:44,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2021-10-13 08:14:44,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 08:14:44,904 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:44,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:44,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1433832451, now seen corresponding path program 1 times [2021-10-13 08:14:44,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:44,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064956995] [2021-10-13 08:14:44,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:44,906 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:44,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:44,907 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:44,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-13 08:14:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:47,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:14:47,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:47,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 930 proven. 0 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2021-10-13 08:14:47,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:48,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 930 proven. 0 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2021-10-13 08:14:48,380 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:48,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064956995] [2021-10-13 08:14:48,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064956995] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:48,380 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:48,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 08:14:48,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521326335] [2021-10-13 08:14:48,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:14:48,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:48,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:14:48,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:14:48,382 INFO L87 Difference]: Start difference. First operand 10930 states and 13968 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:48,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:48,595 INFO L93 Difference]: Finished difference Result 22761 states and 28697 transitions. [2021-10-13 08:14:48,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:14:48,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 361 [2021-10-13 08:14:48,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:48,620 INFO L225 Difference]: With dead ends: 22761 [2021-10-13 08:14:48,621 INFO L226 Difference]: Without dead ends: 11888 [2021-10-13 08:14:48,631 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 719 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:14:48,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11888 states. [2021-10-13 08:14:48,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11888 to 11329. [2021-10-13 08:14:48,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11329 states, 11328 states have (on average 1.2457627118644068) internal successors, (14112), 11328 states have internal predecessors, (14112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:49,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11329 states to 11329 states and 14112 transitions. [2021-10-13 08:14:49,013 INFO L78 Accepts]: Start accepts. Automaton has 11329 states and 14112 transitions. Word has length 361 [2021-10-13 08:14:49,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:49,014 INFO L470 AbstractCegarLoop]: Abstraction has 11329 states and 14112 transitions. [2021-10-13 08:14:49,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:49,014 INFO L276 IsEmpty]: Start isEmpty. Operand 11329 states and 14112 transitions. [2021-10-13 08:14:49,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-10-13 08:14:49,039 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:49,040 INFO L512 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 15, 14, 12, 12, 11, 11, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:49,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:49,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:49,260 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:49,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:49,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1396739116, now seen corresponding path program 1 times [2021-10-13 08:14:49,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:49,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668322339] [2021-10-13 08:14:49,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:49,261 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:49,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:49,263 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:49,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-10-13 08:14:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:51,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:14:51,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:52,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2061 backedges. 1034 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2021-10-13 08:14:52,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:53,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2061 backedges. 1034 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2021-10-13 08:14:53,676 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:53,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668322339] [2021-10-13 08:14:53,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668322339] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:53,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:53,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 08:14:53,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422183535] [2021-10-13 08:14:53,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:14:53,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:53,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:14:53,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:14:53,678 INFO L87 Difference]: Start difference. First operand 11329 states and 14112 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:53,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:53,904 INFO L93 Difference]: Finished difference Result 17799 states and 22219 transitions. [2021-10-13 08:14:53,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:14:53,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 434 [2021-10-13 08:14:53,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:53,918 INFO L225 Difference]: With dead ends: 17799 [2021-10-13 08:14:53,919 INFO L226 Difference]: Without dead ends: 7732 [2021-10-13 08:14:53,931 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 865 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:14:53,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7732 states. [2021-10-13 08:14:54,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7732 to 7730. [2021-10-13 08:14:54,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 1.2564367964807865) internal successors, (9711), 7729 states have internal predecessors, (9711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:54,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 9711 transitions. [2021-10-13 08:14:54,194 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 9711 transitions. Word has length 434 [2021-10-13 08:14:54,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:54,195 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 9711 transitions. [2021-10-13 08:14:54,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:54,195 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 9711 transitions. [2021-10-13 08:14:54,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2021-10-13 08:14:54,212 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:54,213 INFO L512 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 19, 18, 17, 15, 15, 14, 14, 13, 13, 12, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:54,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:54,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:54,427 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:54,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:54,427 INFO L82 PathProgramCache]: Analyzing trace with hash -839302048, now seen corresponding path program 1 times [2021-10-13 08:14:54,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:54,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868366793] [2021-10-13 08:14:54,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:54,428 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:54,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:54,429 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:54,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-10-13 08:14:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:56,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:14:56,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:57,655 INFO L134 CoverageAnalysis]: Checked inductivity of 3220 backedges. 1527 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2021-10-13 08:14:57,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:58,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3220 backedges. 1527 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2021-10-13 08:14:58,646 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:58,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868366793] [2021-10-13 08:14:58,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868366793] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:58,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:58,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:14:58,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185326019] [2021-10-13 08:14:58,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:14:58,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:58,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:14:58,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:58,648 INFO L87 Difference]: Start difference. First operand 7730 states and 9711 transitions. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:58,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:58,912 INFO L93 Difference]: Finished difference Result 15781 states and 20041 transitions. [2021-10-13 08:14:58,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:14:58,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 544 [2021-10-13 08:14:58,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:58,923 INFO L225 Difference]: With dead ends: 15781 [2021-10-13 08:14:58,923 INFO L226 Difference]: Without dead ends: 7352 [2021-10-13 08:14:58,928 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1086 GetRequests, 1084 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:58,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7352 states. [2021-10-13 08:14:59,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7352 to 7298. [2021-10-13 08:14:59,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7298 states, 7297 states have (on average 1.2420172673701522) internal successors, (9063), 7297 states have internal predecessors, (9063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:59,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7298 states to 7298 states and 9063 transitions. [2021-10-13 08:14:59,234 INFO L78 Accepts]: Start accepts. Automaton has 7298 states and 9063 transitions. Word has length 544 [2021-10-13 08:14:59,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:59,234 INFO L470 AbstractCegarLoop]: Abstraction has 7298 states and 9063 transitions. [2021-10-13 08:14:59,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:59,235 INFO L276 IsEmpty]: Start isEmpty. Operand 7298 states and 9063 transitions. [2021-10-13 08:14:59,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2021-10-13 08:14:59,248 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:59,249 INFO L512 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 21, 21, 20, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:59,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:59,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:59,469 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:59,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:59,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1723660819, now seen corresponding path program 1 times [2021-10-13 08:14:59,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:59,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1176524320] [2021-10-13 08:14:59,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:59,471 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:59,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:59,472 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:59,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-10-13 08:15:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:15:02,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 08:15:02,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:15:03,398 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-10-13 08:15:03,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:15:04,567 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-10-13 08:15:04,568 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:15:04,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1176524320] [2021-10-13 08:15:04,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1176524320] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:15:04,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [321650200] [2021-10-13 08:15:04,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:15:04,568 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:15:04,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:15:04,577 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:15:04,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2021-10-13 08:15:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:15:08,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 08:15:08,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:15:09,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-10-13 08:15:09,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:15:10,848 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-10-13 08:15:10,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [321650200] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:15:10,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841687566] [2021-10-13 08:15:10,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:15:10,849 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:15:10,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:15:10,861 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:15:10,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-10-13 08:15:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:15:14,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 08:15:14,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:15:15,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-10-13 08:15:15,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:15:16,805 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-10-13 08:15:16,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841687566] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:15:16,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 08:15:16,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2021-10-13 08:15:16,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16330548] [2021-10-13 08:15:16,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 08:15:16,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:15:16,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 08:15:16,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 08:15:16,809 INFO L87 Difference]: Start difference. First operand 7298 states and 9063 transitions. Second operand has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:15:17,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:15:17,081 INFO L93 Difference]: Finished difference Result 7511 states and 9333 transitions. [2021-10-13 08:15:17,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 08:15:17,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 619 [2021-10-13 08:15:17,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:15:17,083 INFO L225 Difference]: With dead ends: 7511 [2021-10-13 08:15:17,083 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 08:15:17,086 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3712 GetRequests, 3706 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 40.8ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-13 08:15:17,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 08:15:17,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 08:15:17,087 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 08:15:17,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 08:15:17,087 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 619 [2021-10-13 08:15:17,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:15:17,088 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 08:15:17,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:15:17,088 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 08:15:17,088 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 08:15:17,091 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:15:17,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-10-13 08:15:17,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2021-10-13 08:15:17,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2021-10-13 08:15:17,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 08:15:17,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 08:15:17,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:17,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:17,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:17,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:18,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:18,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:18,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:18,087 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:18,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:18,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:18,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:18,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:18,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:18,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:18,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:18,723 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:18,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:18,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:18,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:18,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:18,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:19,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:19,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:23,253 INFO L853 garLoopResultBuilder]: At program point L135(lines 131 556) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse0 .cse1 .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9))) [2021-10-13 08:15:23,254 INFO L853 garLoopResultBuilder]: At program point L532(lines 95 598) the Hoare annotation is: (let ((.cse4 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse0 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (let ((.cse8 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4448 32))) (.cse20 (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse22 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) (.cse21 (not (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4368 32)))) (.cse26 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv3 32))) (.cse27 (= (_ bv4464 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse25 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4496 32))) (.cse6 (= (_ bv4480 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse24 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4528 32))) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4416 32))) (.cse12 (not .cse0)) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0))) (.cse3 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (.cse13 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse14 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse15 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0))) (.cse16 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse17 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse18 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse19 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse7 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) (.cse10 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse23 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4512 32))) (.cse11 (not .cse4))) (or (and .cse0 (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse1 .cse2 .cse3 .cse4 .cse8 .cse5 .cse7) (and .cse1 .cse3 .cse4 .cse9 .cse5) (and .cse10 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4560 32)) .cse11) (and .cse12 .cse1 .cse10 .cse4 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse7) (and .cse1 .cse10 .cse4 .cse20 .cse7) (and .cse21 .cse1 .cse2 .cse3 .cse4 .cse22 .cse5 .cse7) (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse23 .cse7) (and .cse1 .cse10 .cse24 .cse7) (and .cse1 .cse2 .cse25 .cse3 .cse4 .cse5 .cse7) (and .cse21 .cse10 .cse26 .cse11) (and .cse1 .cse10 .cse4 .cse8 .cse7) (and .cse1 .cse10 .cse23 .cse7) (and .cse1 .cse2 .cse3 .cse4 .cse20 .cse5 .cse7) (and .cse10 .cse4 .cse22) (and .cse21 .cse1 .cse2 .cse3 .cse26 .cse11 .cse7) (and .cse1 .cse2 .cse27 .cse3 .cse4 .cse5 .cse7) (and (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv3 32)) .cse10 .cse11 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4352 32))) (and .cse10 .cse24 .cse11) (and (= (_ bv1 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))) (and .cse1 .cse27 .cse10 .cse4 .cse7) (and .cse1 .cse25 .cse10 .cse4 .cse7) (and .cse1 .cse10 .cse4 .cse6 .cse7) (and .cse1 .cse2 .cse3 .cse4 .cse24 .cse5 .cse7) (and .cse1 .cse10 .cse4 .cse9) (and .cse12 .cse1 .cse2 .cse3 .cse4 .cse13 .cse14 .cse15 .cse5 .cse16 .cse17 .cse18 .cse19 .cse7) (and .cse10 .cse23 .cse11)))) [2021-10-13 08:15:23,254 INFO L860 garLoopResultBuilder]: At program point L599(lines 94 600) the Hoare annotation is: true [2021-10-13 08:15:23,254 INFO L857 garLoopResultBuilder]: For program point L170(lines 170 543) no Hoare annotation was computed. [2021-10-13 08:15:23,254 INFO L857 garLoopResultBuilder]: For program point L137(lines 137 554) no Hoare annotation was computed. [2021-10-13 08:15:23,254 INFO L857 garLoopResultBuilder]: For program point L104(lines 104 565) no Hoare annotation was computed. [2021-10-13 08:15:23,254 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 373) no Hoare annotation was computed. [2021-10-13 08:15:23,254 INFO L857 garLoopResultBuilder]: For program point L369-2(lines 369 373) no Hoare annotation was computed. [2021-10-13 08:15:23,254 INFO L857 garLoopResultBuilder]: For program point L303-1(lines 303 317) no Hoare annotation was computed. [2021-10-13 08:15:23,255 INFO L853 garLoopResultBuilder]: At program point L204(lines 101 566) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) [2021-10-13 08:15:23,255 INFO L853 garLoopResultBuilder]: At program point L171(lines 167 544) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse10 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10))) [2021-10-13 08:15:23,255 INFO L857 garLoopResultBuilder]: For program point L568(lines 568 596) no Hoare annotation was computed. [2021-10-13 08:15:23,255 INFO L857 garLoopResultBuilder]: For program point L569(lines 569 593) no Hoare annotation was computed. [2021-10-13 08:15:23,255 INFO L857 garLoopResultBuilder]: For program point L503-1(lines 199 531) no Hoare annotation was computed. [2021-10-13 08:15:23,255 INFO L857 garLoopResultBuilder]: For program point L338(lines 338 343) no Hoare annotation was computed. [2021-10-13 08:15:23,256 INFO L857 garLoopResultBuilder]: For program point L173(lines 173 542) no Hoare annotation was computed. [2021-10-13 08:15:23,256 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 553) no Hoare annotation was computed. [2021-10-13 08:15:23,256 INFO L857 garLoopResultBuilder]: For program point L107(lines 107 564) no Hoare annotation was computed. [2021-10-13 08:15:23,256 INFO L857 garLoopResultBuilder]: For program point L603(lines 603 607) no Hoare annotation was computed. [2021-10-13 08:15:23,256 INFO L857 garLoopResultBuilder]: For program point L570(lines 570 579) no Hoare annotation was computed. [2021-10-13 08:15:23,256 INFO L857 garLoopResultBuilder]: For program point L603-2(lines 603 607) no Hoare annotation was computed. [2021-10-13 08:15:23,256 INFO L857 garLoopResultBuilder]: For program point L570-2(lines 569 591) no Hoare annotation was computed. [2021-10-13 08:15:23,256 INFO L853 garLoopResultBuilder]: At program point L141(lines 137 554) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse9 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2 .cse3 .cse4 .cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse6 .cse7 .cse8 .cse9) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9))) [2021-10-13 08:15:23,257 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 83) no Hoare annotation was computed. [2021-10-13 08:15:23,257 INFO L857 garLoopResultBuilder]: For program point L307(lines 307 311) no Hoare annotation was computed. [2021-10-13 08:15:23,257 INFO L857 garLoopResultBuilder]: For program point L307-2(lines 305 317) no Hoare annotation was computed. [2021-10-13 08:15:23,257 INFO L857 garLoopResultBuilder]: For program point L572(lines 572 576) no Hoare annotation was computed. [2021-10-13 08:15:23,257 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 445) no Hoare annotation was computed. [2021-10-13 08:15:23,257 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 279) no Hoare annotation was computed. [2021-10-13 08:15:23,257 INFO L857 garLoopResultBuilder]: For program point L209(lines 209 213) no Hoare annotation was computed. [2021-10-13 08:15:23,258 INFO L857 garLoopResultBuilder]: For program point L176(lines 176 541) no Hoare annotation was computed. [2021-10-13 08:15:23,258 INFO L857 garLoopResultBuilder]: For program point L143(lines 143 552) no Hoare annotation was computed. [2021-10-13 08:15:23,258 INFO L857 garLoopResultBuilder]: For program point L209-2(lines 199 531) no Hoare annotation was computed. [2021-10-13 08:15:23,258 INFO L857 garLoopResultBuilder]: For program point L110(lines 110 563) no Hoare annotation was computed. [2021-10-13 08:15:23,258 INFO L857 garLoopResultBuilder]: For program point L474(lines 474 478) no Hoare annotation was computed. [2021-10-13 08:15:23,258 INFO L853 garLoopResultBuilder]: At program point L177(lines 173 542) the Hoare annotation is: (let ((.cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse10 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse8 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse11 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse6 .cse7 (not .cse8) .cse9) (and .cse0 .cse10 .cse1 .cse2 .cse8 .cse3 .cse4 .cse5 .cse6 .cse7 .cse9 .cse11) (and .cse0 .cse10 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse8 .cse3 .cse4 .cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse6 .cse7 .cse9 .cse11))) [2021-10-13 08:15:23,259 INFO L857 garLoopResultBuilder]: For program point L78(lines 78 82) no Hoare annotation was computed. [2021-10-13 08:15:23,259 INFO L857 garLoopResultBuilder]: For program point L78-2(lines 75 83) no Hoare annotation was computed. [2021-10-13 08:15:23,259 INFO L857 garLoopResultBuilder]: For program point L508-1(lines 508 512) no Hoare annotation was computed. [2021-10-13 08:15:23,259 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 413) no Hoare annotation was computed. [2021-10-13 08:15:23,259 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 250) no Hoare annotation was computed. [2021-10-13 08:15:23,259 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 540) no Hoare annotation was computed. [2021-10-13 08:15:23,260 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 551) no Hoare annotation was computed. [2021-10-13 08:15:23,260 INFO L857 garLoopResultBuilder]: For program point L113(lines 113 562) no Hoare annotation was computed. [2021-10-13 08:15:23,260 INFO L853 garLoopResultBuilder]: At program point L147(lines 143 552) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse10 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10))) [2021-10-13 08:15:23,260 INFO L857 garLoopResultBuilder]: For program point L479(lines 479 483) no Hoare annotation was computed. [2021-10-13 08:15:23,260 INFO L857 garLoopResultBuilder]: For program point L479-2(lines 479 483) no Hoare annotation was computed. [2021-10-13 08:15:23,260 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 539) no Hoare annotation was computed. [2021-10-13 08:15:23,260 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 550) no Hoare annotation was computed. [2021-10-13 08:15:23,260 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 561) no Hoare annotation was computed. [2021-10-13 08:15:23,260 INFO L857 garLoopResultBuilder]: For program point L381(lines 381 385) no Hoare annotation was computed. [2021-10-13 08:15:23,260 INFO L857 garLoopResultBuilder]: For program point L348(lines 348 352) no Hoare annotation was computed. [2021-10-13 08:15:23,261 INFO L853 garLoopResultBuilder]: At program point L183(lines 179 540) the Hoare annotation is: (let ((.cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse10 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse8 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse11 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse6 .cse7 (not .cse8) .cse9) (and .cse0 .cse10 .cse1 .cse2 .cse8 .cse3 .cse4 .cse5 .cse6 .cse7 .cse9 .cse11) (and .cse0 .cse10 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse8 .cse3 .cse4 .cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse6 .cse7 .cse9 .cse11))) [2021-10-13 08:15:23,261 INFO L853 garLoopResultBuilder]: At program point L117(lines 113 562) the Hoare annotation is: (and (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) [2021-10-13 08:15:23,261 INFO L853 garLoopResultBuilder]: At program point L349(lines 67 616) the Hoare annotation is: false [2021-10-13 08:15:23,261 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 93) no Hoare annotation was computed. [2021-10-13 08:15:23,261 INFO L860 garLoopResultBuilder]: At program point L614(lines 67 616) the Hoare annotation is: true [2021-10-13 08:15:23,261 INFO L857 garLoopResultBuilder]: For program point L581(lines 581 587) no Hoare annotation was computed. [2021-10-13 08:15:23,261 INFO L857 garLoopResultBuilder]: For program point L515(lines 515 519) no Hoare annotation was computed. [2021-10-13 08:15:23,261 INFO L857 garLoopResultBuilder]: For program point L515-2(lines 515 519) no Hoare annotation was computed. [2021-10-13 08:15:23,261 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 08:15:23,261 INFO L857 garLoopResultBuilder]: For program point L284(lines 284 288) no Hoare annotation was computed. [2021-10-13 08:15:23,262 INFO L857 garLoopResultBuilder]: For program point L284-2(lines 199 531) no Hoare annotation was computed. [2021-10-13 08:15:23,262 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 538) no Hoare annotation was computed. [2021-10-13 08:15:23,262 INFO L857 garLoopResultBuilder]: For program point L152(lines 152 549) no Hoare annotation was computed. [2021-10-13 08:15:23,262 INFO L857 garLoopResultBuilder]: For program point L119(lines 119 560) no Hoare annotation was computed. [2021-10-13 08:15:23,262 INFO L857 garLoopResultBuilder]: For program point L86(lines 86 90) no Hoare annotation was computed. [2021-10-13 08:15:23,262 INFO L860 garLoopResultBuilder]: At program point L615(lines 10 617) the Hoare annotation is: true [2021-10-13 08:15:23,262 INFO L857 garLoopResultBuilder]: For program point L450(lines 450 454) no Hoare annotation was computed. [2021-10-13 08:15:23,262 INFO L857 garLoopResultBuilder]: For program point L353(lines 353 357) no Hoare annotation was computed. [2021-10-13 08:15:23,262 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 238) no Hoare annotation was computed. [2021-10-13 08:15:23,262 INFO L857 garLoopResultBuilder]: For program point L188(lines 188 537) no Hoare annotation was computed. [2021-10-13 08:15:23,262 INFO L857 garLoopResultBuilder]: For program point L155(lines 155 548) no Hoare annotation was computed. [2021-10-13 08:15:23,262 INFO L857 garLoopResultBuilder]: For program point L221-2(lines 199 531) no Hoare annotation was computed. [2021-10-13 08:15:23,262 INFO L857 garLoopResultBuilder]: For program point L122(lines 122 559) no Hoare annotation was computed. [2021-10-13 08:15:23,263 INFO L853 garLoopResultBuilder]: At program point L189(lines 185 538) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse12 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse10 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse11 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse12 .cse2 .cse4 .cse5 .cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse7 .cse8 (not .cse3) .cse10) (and .cse0 .cse1 .cse12 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11))) [2021-10-13 08:15:23,263 INFO L853 garLoopResultBuilder]: At program point L123(lines 119 560) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse10 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse11 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse2 .cse4 .cse5 .cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse7 (= (_ bv1 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse8 .cse10) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11))) [2021-10-13 08:15:23,263 INFO L857 garLoopResultBuilder]: For program point L487-1(lines 487 499) no Hoare annotation was computed. [2021-10-13 08:15:23,263 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 425) no Hoare annotation was computed. [2021-10-13 08:15:23,263 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 08:15:23,263 INFO L857 garLoopResultBuilder]: For program point L223(lines 223 228) no Hoare annotation was computed. [2021-10-13 08:15:23,263 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 536) no Hoare annotation was computed. [2021-10-13 08:15:23,263 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 547) no Hoare annotation was computed. [2021-10-13 08:15:23,263 INFO L857 garLoopResultBuilder]: For program point L125(lines 125 558) no Hoare annotation was computed. [2021-10-13 08:15:23,263 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 526) no Hoare annotation was computed. [2021-10-13 08:15:23,264 INFO L853 garLoopResultBuilder]: At program point L192(lines 191 536) the Hoare annotation is: (let ((.cse0 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse4 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) (.cse5 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4352 32)))) (or (and .cse0 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse1 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse3 .cse4) (and (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv3 32)) .cse5 (not .cse1) .cse3))) [2021-10-13 08:15:23,264 INFO L853 garLoopResultBuilder]: At program point L159(lines 149 550) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse10 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10))) [2021-10-13 08:15:23,264 INFO L857 garLoopResultBuilder]: For program point L490(lines 490 495) no Hoare annotation was computed. [2021-10-13 08:15:23,264 INFO L857 garLoopResultBuilder]: For program point L457(lines 457 468) no Hoare annotation was computed. [2021-10-13 08:15:23,264 INFO L857 garLoopResultBuilder]: For program point L457-1(lines 457 468) no Hoare annotation was computed. [2021-10-13 08:15:23,264 INFO L857 garLoopResultBuilder]: For program point L325(lines 325 329) no Hoare annotation was computed. [2021-10-13 08:15:23,264 INFO L857 garLoopResultBuilder]: For program point L259(lines 259 267) no Hoare annotation was computed. [2021-10-13 08:15:23,264 INFO L857 garLoopResultBuilder]: For program point L325-2(lines 199 531) no Hoare annotation was computed. [2021-10-13 08:15:23,264 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 08:15:23,265 INFO L857 garLoopResultBuilder]: For program point L392(lines 392 396) no Hoare annotation was computed. [2021-10-13 08:15:23,265 INFO L857 garLoopResultBuilder]: For program point L194(lines 194 535) no Hoare annotation was computed. [2021-10-13 08:15:23,265 INFO L857 garLoopResultBuilder]: For program point L161(lines 161 546) no Hoare annotation was computed. [2021-10-13 08:15:23,265 INFO L857 garLoopResultBuilder]: For program point L128(lines 128 557) no Hoare annotation was computed. [2021-10-13 08:15:23,265 INFO L857 garLoopResultBuilder]: For program point L95-1(lines 67 616) no Hoare annotation was computed. [2021-10-13 08:15:23,265 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 465) no Hoare annotation was computed. [2021-10-13 08:15:23,265 INFO L857 garLoopResultBuilder]: For program point L294(lines 294 298) no Hoare annotation was computed. [2021-10-13 08:15:23,265 INFO L857 garLoopResultBuilder]: For program point L294-2(lines 294 298) no Hoare annotation was computed. [2021-10-13 08:15:23,265 INFO L860 garLoopResultBuilder]: At program point L195(lines 194 535) the Hoare annotation is: true [2021-10-13 08:15:23,265 INFO L853 garLoopResultBuilder]: At program point L129(lines 125 558) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and .cse0 (not (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4368 32))) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2 .cse3 .cse4 .cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse6 .cse7 .cse8 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8))) [2021-10-13 08:15:23,265 INFO L857 garLoopResultBuilder]: For program point L96(line 96) no Hoare annotation was computed. [2021-10-13 08:15:23,265 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 266) no Hoare annotation was computed. [2021-10-13 08:15:23,266 INFO L857 garLoopResultBuilder]: For program point L229(lines 229 234) no Hoare annotation was computed. [2021-10-13 08:15:23,266 INFO L857 garLoopResultBuilder]: For program point L262-2(lines 199 531) no Hoare annotation was computed. [2021-10-13 08:15:23,266 INFO L860 garLoopResultBuilder]: At program point L626(lines 618 628) the Hoare annotation is: true [2021-10-13 08:15:23,266 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 545) no Hoare annotation was computed. [2021-10-13 08:15:23,266 INFO L857 garLoopResultBuilder]: For program point L131(lines 131 556) no Hoare annotation was computed. [2021-10-13 08:15:23,266 INFO L857 garLoopResultBuilder]: For program point L98(lines 98 567) no Hoare annotation was computed. [2021-10-13 08:15:23,266 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 08:15:23,266 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 610) no Hoare annotation was computed. [2021-10-13 08:15:23,266 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 433) no Hoare annotation was computed. [2021-10-13 08:15:23,266 INFO L857 garLoopResultBuilder]: For program point L429-2(lines 199 531) no Hoare annotation was computed. [2021-10-13 08:15:23,266 INFO L860 garLoopResultBuilder]: At program point L198(lines 197 534) the Hoare annotation is: true [2021-10-13 08:15:23,266 INFO L853 garLoopResultBuilder]: At program point L165(lines 161 546) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse10 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10))) [2021-10-13 08:15:23,266 INFO L853 garLoopResultBuilder]: At program point L99(lines 98 567) the Hoare annotation is: (and (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) [2021-10-13 08:15:23,267 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 368) no Hoare annotation was computed. [2021-10-13 08:15:23,267 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 403) no Hoare annotation was computed. [2021-10-13 08:15:23,267 INFO L857 garLoopResultBuilder]: For program point L398-2(lines 398 403) no Hoare annotation was computed. [2021-10-13 08:15:23,267 INFO L857 garLoopResultBuilder]: For program point L167(lines 167 544) no Hoare annotation was computed. [2021-10-13 08:15:23,267 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 555) no Hoare annotation was computed. [2021-10-13 08:15:23,267 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 566) no Hoare annotation was computed. [2021-10-13 08:15:23,272 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 08:15:23,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:15:23 BoogieIcfgContainer [2021-10-13 08:15:23,337 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 08:15:23,337 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 08:15:23,337 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 08:15:23,338 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 08:15:23,338 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:13:49" (3/4) ... [2021-10-13 08:15:23,341 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 08:15:23,358 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-13 08:15:23,359 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 08:15:23,360 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 08:15:23,361 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 08:15:23,472 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 08:15:23,472 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 08:15:23,474 INFO L168 Benchmark]: Toolchain (without parser) took 95971.74 ms. Allocated memory was 71.3 MB in the beginning and 885.0 MB in the end (delta: 813.7 MB). Free memory was 54.3 MB in the beginning and 274.0 MB in the end (delta: -219.7 MB). Peak memory consumption was 594.6 MB. Max. memory is 16.1 GB. [2021-10-13 08:15:23,474 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 71.3 MB. Free memory is still 51.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:15:23,475 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.58 ms. Allocated memory is still 71.3 MB. Free memory was 54.2 MB in the beginning and 51.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:15:23,475 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.58 ms. Allocated memory is still 71.3 MB. Free memory was 51.2 MB in the beginning and 48.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:15:23,476 INFO L168 Benchmark]: Boogie Preprocessor took 84.88 ms. Allocated memory is still 71.3 MB. Free memory was 48.6 MB in the beginning and 46.7 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:15:23,476 INFO L168 Benchmark]: RCFGBuilder took 902.43 ms. Allocated memory is still 71.3 MB. Free memory was 46.5 MB in the beginning and 46.5 MB in the end (delta: -55.9 kB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:15:23,477 INFO L168 Benchmark]: TraceAbstraction took 94269.48 ms. Allocated memory was 71.3 MB in the beginning and 885.0 MB in the end (delta: 813.7 MB). Free memory was 45.9 MB in the beginning and 284.5 MB in the end (delta: -238.6 MB). Peak memory consumption was 597.4 MB. Max. memory is 16.1 GB. [2021-10-13 08:15:23,477 INFO L168 Benchmark]: Witness Printer took 135.14 ms. Allocated memory is still 885.0 MB. Free memory was 284.5 MB in the beginning and 274.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:15:23,480 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 71.3 MB. Free memory is still 51.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 491.58 ms. Allocated memory is still 71.3 MB. Free memory was 54.2 MB in the beginning and 51.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.58 ms. Allocated memory is still 71.3 MB. Free memory was 51.2 MB in the beginning and 48.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 84.88 ms. Allocated memory is still 71.3 MB. Free memory was 48.6 MB in the beginning and 46.7 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 902.43 ms. Allocated memory is still 71.3 MB. Free memory was 46.5 MB in the beginning and 46.5 MB in the end (delta: -55.9 kB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 94269.48 ms. Allocated memory was 71.3 MB in the beginning and 885.0 MB in the end (delta: 813.7 MB). Free memory was 45.9 MB in the beginning and 284.5 MB in the end (delta: -238.6 MB). Peak memory consumption was 597.4 MB. Max. memory is 16.1 GB. * Witness Printer took 135.14 ms. Allocated memory is still 885.0 MB. Free memory was 284.5 MB in the beginning and 274.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 610]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 125 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 94122.4ms, OverallIterations: 25, TraceHistogramMax: 22, EmptinessCheckTime: 286.1ms, AutomataDifference: 6616.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 5540.6ms, InitialAbstractionConstructionTime: 18.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4650 SDtfs, 3875 SDslu, 4055 SDs, 0 SdLazy, 3761 SolverSat, 658 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3096.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16086 GetRequests, 16023 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 287.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11329occurred in iteration=22, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 3025.7ms AutomataMinimizationTime, 25 MinimizatonAttempts, 8253 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 23 LocationsWithAnnotation, 23 PreInvPairs, 281 NumberOfFragments, 1940 HoareAnnotationTreeSize, 23 FomulaSimplifications, 19573 FormulaSimplificationTreeSizeReduction, 1431.3ms HoareSimplificationTime, 23 FomulaSimplificationsInter, 14684 FormulaSimplificationTreeSizeReductionInter, 4094.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 663.8ms SsaConstructionTime, 2608.6ms SatisfiabilityAnalysisTime, 32637.2ms InterpolantComputationTime, 8066 NumberOfCodeBlocks, 8066 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 16068 ConstructedInterpolants, 0 QuantifiedInterpolants, 22634 SizeOfPredicates, 14 NumberOfNonLiveVariables, 10823 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 64 InterpolantComputations, 44 PerfectInterpolantSequences, 70776/71144 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__hit == 0bv32)) && !(s__state == 4099bv32)) || (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X)) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: (((((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || ((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__hit == 0bv32)) && !(s__state == 4099bv32))) || ((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: ((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) || (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: (((((((0bv32 == blastFlag && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32) - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: (((((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((!(s__state == 4368bv32) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && 1bv32 == blastFlag) && !(s__state == 16384bv32)) && !(s__state == 4099bv32))) || ((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((s__state == 4368bv32 && 0bv32 == blastFlag) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && 4480bv32 == s__state) && 65535bv32 == ag_X)) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && s__state == 4448bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || ((((61087bv32 == ag_Y && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && s__state == 4416bv32) && !(5bv32 == blastFlag))) || ((2bv32 == blastFlag && s__state == 4560bv32) && !(s__hit == 0bv32))) || (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X)) || ((((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__hit == 0bv32) && 4432bv32 == s__state) && 65535bv32 == ag_X)) || (((((((!(s__s3__tmp__next_state___0 == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && s__state == 4400bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && s__state == 4512bv32) && 65535bv32 == ag_X)) || (((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__state == 4528bv32) && 65535bv32 == ag_X)) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && s__state == 4496bv32) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || (((!(s__s3__tmp__next_state___0 == 4368bv32) && 2bv32 == blastFlag) && s__state == 3bv32) && !(s__hit == 0bv32))) || ((((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__hit == 0bv32) && s__state == 4448bv32) && 65535bv32 == ag_X)) || (((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__state == 4512bv32) && 65535bv32 == ag_X)) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && 4432bv32 == s__state) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || ((2bv32 == blastFlag && s__hit == 0bv32) && s__state == 4400bv32)) || ((((((!(s__s3__tmp__next_state___0 == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__state == 3bv32) && !(s__hit == 0bv32)) && 65535bv32 == ag_X)) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 4464bv32 == s__state) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || (((s__s3__tmp__next_state___0 == 3bv32 && 2bv32 == blastFlag) && !(s__hit == 0bv32)) && s__state == 4352bv32)) || ((2bv32 == blastFlag && s__state == 4528bv32) && !(s__hit == 0bv32))) || (1bv32 == blastFlag && s__state == 4384bv32)) || ((((61087bv32 == ag_Y && 4464bv32 == s__state) && 2bv32 == blastFlag) && s__hit == 0bv32) && 65535bv32 == ag_X)) || ((((61087bv32 == ag_Y && s__state == 4496bv32) && 2bv32 == blastFlag) && s__hit == 0bv32) && 65535bv32 == ag_X)) || ((((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__hit == 0bv32) && 4480bv32 == s__state) && 65535bv32 == ag_X)) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && s__state == 4528bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || (((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__hit == 0bv32) && s__state == 4416bv32)) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X)) || ((2bv32 == blastFlag && s__state == 4512bv32) && !(s__hit == 0bv32)) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: 0bv32 == blastFlag && s__state == 12292bv32 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (((((((!(s__state == 4368bv32) && 0bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32) - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: ((((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && s__s3__tmp__next_state___0 == 4560bv32) && s__state == 4352bv32) && 65535bv32 == ag_X) || (((((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__hit == 0bv32) && s__s3__tmp__next_state___0 == 4560bv32) && s__state == 4352bv32) && 65535bv32 == ag_X)) || (((s__s3__tmp__next_state___0 == 3bv32 && 2bv32 == blastFlag) && !(s__hit == 0bv32)) && s__state == 4352bv32) - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: ((((((((((((((!(s__state == 4368bv32) && !(s__s3__tmp__next_state___0 == 4368bv32)) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: ((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || ((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__hit == 0bv32)) && !(s__state == 4099bv32)) || (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X)) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) RESULT: Ultimate proved your program to be correct! [2021-10-13 08:15:23,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6416ac6-a9b2-4629-aed1-ec1ee2613594/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...