./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh --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 ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 06:46:07,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:46:07,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:46:07,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:46:07,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:46:07,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:46:07,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:46:07,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:46:07,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:46:07,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:46:07,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:46:07,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:46:07,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:46:07,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:46:07,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:46:07,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:46:07,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:46:07,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:46:07,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:46:07,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:46:07,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:46:07,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:46:07,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:46:07,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:46:07,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:46:07,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:46:07,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:46:07,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:46:07,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:46:07,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:46:07,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:46:07,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:46:07,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:46:07,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:46:07,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:46:07,433 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:46:07,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:46:07,434 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:46:07,434 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:46:07,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:46:07,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:46:07,436 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:46:07,455 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:46:07,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:46:07,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:46:07,456 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:46:07,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:46:07,456 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:46:07,457 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:46:07,457 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:46:07,457 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:46:07,457 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:46:07,457 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:46:07,458 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:46:07,458 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:46:07,458 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:46:07,458 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:46:07,458 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:46:07,459 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:46:07,459 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:46:07,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:46:07,460 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:46:07,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:46:07,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:46:07,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:46:07,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:46:07,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:46:07,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:46:07,461 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:46:07,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:46:07,461 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:46:07,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:46:07,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:46:07,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:46:07,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:46:07,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:46:07,462 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:46:07,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:46:07,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:46:07,463 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:46:07,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:46:07,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:46:07,464 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:46:07,464 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e [2022-12-14 06:46:07,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:46:07,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:46:07,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:46:07,687 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:46:07,688 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:46:07,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2022-12-14 06:46:10,229 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:46:10,420 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:46:10,421 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2022-12-14 06:46:10,428 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/data/8689a8184/c4d4762ed3674600a0aa725cb96d19ef/FLAG1d2aeb455 [2022-12-14 06:46:10,780 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/data/8689a8184/c4d4762ed3674600a0aa725cb96d19ef [2022-12-14 06:46:10,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:46:10,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:46:10,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:46:10,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:46:10,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:46:10,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:46:10" (1/1) ... [2022-12-14 06:46:10,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@495f0556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:10, skipping insertion in model container [2022-12-14 06:46:10,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:46:10" (1/1) ... [2022-12-14 06:46:10,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:46:10,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:46:10,974 WARN L237 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_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c[37883,37896] [2022-12-14 06:46:10,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:46:10,988 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:46:11,021 WARN L237 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_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c[37883,37896] [2022-12-14 06:46:11,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:46:11,032 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:46:11,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:11 WrapperNode [2022-12-14 06:46:11,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:46:11,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:46:11,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:46:11,034 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:46:11,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:11" (1/1) ... [2022-12-14 06:46:11,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:11" (1/1) ... [2022-12-14 06:46:11,068 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 497 [2022-12-14 06:46:11,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:46:11,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:46:11,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:46:11,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:46:11,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:11" (1/1) ... [2022-12-14 06:46:11,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:11" (1/1) ... [2022-12-14 06:46:11,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:11" (1/1) ... [2022-12-14 06:46:11,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:11" (1/1) ... [2022-12-14 06:46:11,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:11" (1/1) ... [2022-12-14 06:46:11,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:11" (1/1) ... [2022-12-14 06:46:11,097 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:11" (1/1) ... [2022-12-14 06:46:11,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:11" (1/1) ... [2022-12-14 06:46:11,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:46:11,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:46:11,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:46:11,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:46:11,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:11" (1/1) ... [2022-12-14 06:46:11,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:46:11,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:46:11,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:46:11,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:46:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:46:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:46:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:46:11,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:46:11,242 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:46:11,244 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:46:11,254 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-12-14 06:46:11,637 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-12-14 06:46:11,638 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-12-14 06:46:11,638 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:46:11,793 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:46:11,794 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:46:11,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:46:11 BoogieIcfgContainer [2022-12-14 06:46:11,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:46:11,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:46:11,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:46:11,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:46:11,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:46:10" (1/3) ... [2022-12-14 06:46:11,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e2accc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:46:11, skipping insertion in model container [2022-12-14 06:46:11,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:11" (2/3) ... [2022-12-14 06:46:11,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e2accc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:46:11, skipping insertion in model container [2022-12-14 06:46:11,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:46:11" (3/3) ... [2022-12-14 06:46:11,805 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2022-12-14 06:46:11,824 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:46:11,824 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:46:11,862 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:46:11,866 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3d7d637f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:46:11,867 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:46:11,871 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) [2022-12-14 06:46:11,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 06:46:11,877 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:11,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:11,878 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:46:11,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:11,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1361727280, now seen corresponding path program 1 times [2022-12-14 06:46:11,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:11,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090293262] [2022-12-14 06:46:11,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:11,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:12,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:12,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:12,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090293262] [2022-12-14 06:46:12,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090293262] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:12,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:12,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:46:12,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986074571] [2022-12-14 06:46:12,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:12,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:46:12,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:12,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:46:12,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:12,107 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) [2022-12-14 06:46:12,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:12,227 INFO L93 Difference]: Finished difference Result 169 states and 293 transitions. [2022-12-14 06:46:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:46:12,229 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 [2022-12-14 06:46:12,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:12,238 INFO L225 Difference]: With dead ends: 169 [2022-12-14 06:46:12,238 INFO L226 Difference]: Without dead ends: 83 [2022-12-14 06:46:12,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:12,244 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:12,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:12,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-12-14 06:46:12,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-12-14 06:46:12,278 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) [2022-12-14 06:46:12,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 120 transitions. [2022-12-14 06:46:12,281 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 120 transitions. Word has length 19 [2022-12-14 06:46:12,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:12,281 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 120 transitions. [2022-12-14 06:46:12,281 INFO L496 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) [2022-12-14 06:46:12,281 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 120 transitions. [2022-12-14 06:46:12,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 06:46:12,282 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:12,282 INFO L195 NwaCegarLoop]: 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] [2022-12-14 06:46:12,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:46:12,283 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:46:12,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:12,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1186200900, now seen corresponding path program 1 times [2022-12-14 06:46:12,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:12,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691334217] [2022-12-14 06:46:12,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:12,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:12,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:12,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:12,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:12,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691334217] [2022-12-14 06:46:12,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691334217] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:12,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:12,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:46:12,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999851732] [2022-12-14 06:46:12,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:12,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:46:12,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:12,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:46:12,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:12,342 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) [2022-12-14 06:46:12,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:12,445 INFO L93 Difference]: Finished difference Result 178 states and 261 transitions. [2022-12-14 06:46:12,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:46:12,445 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 [2022-12-14 06:46:12,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:12,446 INFO L225 Difference]: With dead ends: 178 [2022-12-14 06:46:12,446 INFO L226 Difference]: Without dead ends: 98 [2022-12-14 06:46:12,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:12,448 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 8 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:12,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 129 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:12,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-12-14 06:46:12,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2022-12-14 06:46:12,455 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) [2022-12-14 06:46:12,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 136 transitions. [2022-12-14 06:46:12,456 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 136 transitions. Word has length 28 [2022-12-14 06:46:12,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:12,457 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 136 transitions. [2022-12-14 06:46:12,457 INFO L496 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) [2022-12-14 06:46:12,457 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 136 transitions. [2022-12-14 06:46:12,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 06:46:12,458 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:12,458 INFO L195 NwaCegarLoop]: 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] [2022-12-14 06:46:12,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:46:12,458 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:46:12,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:12,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1856699790, now seen corresponding path program 1 times [2022-12-14 06:46:12,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:12,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661609479] [2022-12-14 06:46:12,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:12,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:12,534 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:46:12,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:12,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661609479] [2022-12-14 06:46:12,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661609479] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:12,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:12,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:46:12,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570978216] [2022-12-14 06:46:12,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:12,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:46:12,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:12,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:46:12,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:12,536 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) [2022-12-14 06:46:12,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:12,634 INFO L93 Difference]: Finished difference Result 206 states and 297 transitions. [2022-12-14 06:46:12,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:46:12,635 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 [2022-12-14 06:46:12,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:12,636 INFO L225 Difference]: With dead ends: 206 [2022-12-14 06:46:12,636 INFO L226 Difference]: Without dead ends: 113 [2022-12-14 06:46:12,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:12,637 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 8 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:12,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 140 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:12,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-12-14 06:46:12,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2022-12-14 06:46:12,642 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) [2022-12-14 06:46:12,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 154 transitions. [2022-12-14 06:46:12,643 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 154 transitions. Word has length 39 [2022-12-14 06:46:12,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:12,643 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 154 transitions. [2022-12-14 06:46:12,643 INFO L496 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) [2022-12-14 06:46:12,643 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 154 transitions. [2022-12-14 06:46:12,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 06:46:12,644 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:12,644 INFO L195 NwaCegarLoop]: 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] [2022-12-14 06:46:12,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:46:12,644 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:46:12,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:12,645 INFO L85 PathProgramCache]: Analyzing trace with hash -548658050, now seen corresponding path program 1 times [2022-12-14 06:46:12,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:12,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900199643] [2022-12-14 06:46:12,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:12,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:12,795 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:46:12,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:12,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900199643] [2022-12-14 06:46:12,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900199643] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:46:12,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542590754] [2022-12-14 06:46:12,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:12,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:46:12,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:46:12,797 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:46:12,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:46:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:12,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 06:46:12,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:46:12,960 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:46:12,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:46:13,154 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 06:46:13,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542590754] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:46:13,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [942149934] [2022-12-14 06:46:13,174 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-12-14 06:46:13,174 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:46:13,178 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:46:13,184 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:46:13,184 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:46:15,752 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:46:23,645 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1462#(and (= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (= |ULTIMATE.start_ssl3_connect_~tmp___0~0#1| 0) (<= |ULTIMATE.start_ssl3_connect_~tmp___4~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~tmp___7~0#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher~0#1|)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~tmp___3~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~tmp___7~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_compression__id~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~s__s3__flags~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~tmp___5~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~tmp___4~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~num1~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__bbio~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~s__init_buf___0~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__ctx__stats__sess_connect~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__cert_req~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~s__info_callback~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~cb~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~tmp___9~0#1| 2147483648)) (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__init_buf___0~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~tmp___9~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~s__bbio~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__s3__flags~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~cb~0#1| 2147483648)) (= |ULTIMATE.start_ssl3_connect_~skip~0#1| 0) (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__ctx__info_callback~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~ret~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__wbio~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__debug~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~num1~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__s3__tmp__reuse_message~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~tmp___5~0#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_connect_~ret~0#1|)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__s3__tmp__cert_req~0#1| 2147483648)) (= |ULTIMATE.start_ssl3_connect_~state~0#1| |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_compression~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__info_callback~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__reuse_message~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~tmp~0#1| 2147483647) (= |#NULL.offset| 0) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_compression__id~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~s__ctx__info_callback~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~tmp___8~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~tmp___6~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_compression~0#1| 2147483647) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_ssl3_connect_~s__wbio~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~tmp___3~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~tmp___6~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~tmp___8~0#1| 2147483647) (= |#NULL.base| 0) (<= |ULTIMATE.start_ssl3_connect_~s__debug~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~tmp~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 2147483647))' at error location [2022-12-14 06:46:23,645 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:46:23,645 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:46:23,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 6 [2022-12-14 06:46:23,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413684811] [2022-12-14 06:46:23,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:46:23,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 06:46:23,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:23,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 06:46:23,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1030, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 06:46:23,647 INFO L87 Difference]: Start difference. First operand 111 states and 154 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 6 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) [2022-12-14 06:46:23,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:23,745 INFO L93 Difference]: Finished difference Result 464 states and 645 transitions. [2022-12-14 06:46:23,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:46:23,745 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 6 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 52 [2022-12-14 06:46:23,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:23,749 INFO L225 Difference]: With dead ends: 464 [2022-12-14 06:46:23,749 INFO L226 Difference]: Without dead ends: 462 [2022-12-14 06:46:23,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=230, Invalid=1030, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 06:46:23,752 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 389 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:23,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 682 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:23,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-12-14 06:46:23,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 385. [2022-12-14 06:46:23,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.4322916666666667) internal successors, (550), 384 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:23,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 550 transitions. [2022-12-14 06:46:23,767 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 550 transitions. Word has length 52 [2022-12-14 06:46:23,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:23,767 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 550 transitions. [2022-12-14 06:46:23,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 6 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) [2022-12-14 06:46:23,767 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 550 transitions. [2022-12-14 06:46:23,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-12-14 06:46:23,769 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:23,770 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 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] [2022-12-14 06:46:23,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:46:23,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:46:23,972 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:46:23,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:23,973 INFO L85 PathProgramCache]: Analyzing trace with hash 347042461, now seen corresponding path program 1 times [2022-12-14 06:46:23,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:23,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094783342] [2022-12-14 06:46:23,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:23,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:24,043 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-12-14 06:46:24,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:24,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094783342] [2022-12-14 06:46:24,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094783342] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:24,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:24,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:46:24,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513877169] [2022-12-14 06:46:24,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:24,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:46:24,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:24,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:46:24,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:24,046 INFO L87 Difference]: Start difference. First operand 385 states and 550 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:24,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:24,161 INFO L93 Difference]: Finished difference Result 944 states and 1413 transitions. [2022-12-14 06:46:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:46:24,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 99 [2022-12-14 06:46:24,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:24,164 INFO L225 Difference]: With dead ends: 944 [2022-12-14 06:46:24,164 INFO L226 Difference]: Without dead ends: 558 [2022-12-14 06:46:24,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:24,166 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 50 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:24,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 136 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:24,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-12-14 06:46:24,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 537. [2022-12-14 06:46:24,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 536 states have (on average 1.4813432835820894) internal successors, (794), 536 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:24,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 794 transitions. [2022-12-14 06:46:24,180 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 794 transitions. Word has length 99 [2022-12-14 06:46:24,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:24,181 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 794 transitions. [2022-12-14 06:46:24,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:24,181 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 794 transitions. [2022-12-14 06:46:24,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-12-14 06:46:24,184 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:24,184 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 7, 7, 7, 7, 7, 5, 5, 3, 3, 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] [2022-12-14 06:46:24,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 06:46:24,184 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:46:24,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:24,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1106854527, now seen corresponding path program 2 times [2022-12-14 06:46:24,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:24,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312966458] [2022-12-14 06:46:24,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:24,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:24,240 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-12-14 06:46:24,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:24,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312966458] [2022-12-14 06:46:24,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312966458] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:24,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:24,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:46:24,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706946199] [2022-12-14 06:46:24,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:24,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:46:24,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:24,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:46:24,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:24,243 INFO L87 Difference]: Start difference. First operand 537 states and 794 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:24,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:24,354 INFO L93 Difference]: Finished difference Result 1375 states and 2097 transitions. [2022-12-14 06:46:24,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:46:24,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 119 [2022-12-14 06:46:24,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:24,356 INFO L225 Difference]: With dead ends: 1375 [2022-12-14 06:46:24,356 INFO L226 Difference]: Without dead ends: 790 [2022-12-14 06:46:24,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:24,358 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 59 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:24,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 120 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:24,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2022-12-14 06:46:24,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 752. [2022-12-14 06:46:24,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 751 states have (on average 1.430093209054594) internal successors, (1074), 751 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:24,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1074 transitions. [2022-12-14 06:46:24,374 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1074 transitions. Word has length 119 [2022-12-14 06:46:24,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:24,374 INFO L495 AbstractCegarLoop]: Abstraction has 752 states and 1074 transitions. [2022-12-14 06:46:24,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:24,375 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1074 transitions. [2022-12-14 06:46:24,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-12-14 06:46:24,377 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:24,377 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 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] [2022-12-14 06:46:24,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 06:46:24,378 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:46:24,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:24,378 INFO L85 PathProgramCache]: Analyzing trace with hash 231771597, now seen corresponding path program 1 times [2022-12-14 06:46:24,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:24,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519545797] [2022-12-14 06:46:24,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:24,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:24,435 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-12-14 06:46:24,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:24,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519545797] [2022-12-14 06:46:24,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519545797] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:24,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:24,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:46:24,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158000945] [2022-12-14 06:46:24,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:24,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:46:24,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:24,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:46:24,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:24,436 INFO L87 Difference]: Start difference. First operand 752 states and 1074 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:24,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:24,553 INFO L93 Difference]: Finished difference Result 1648 states and 2364 transitions. [2022-12-14 06:46:24,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:46:24,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2022-12-14 06:46:24,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:24,556 INFO L225 Difference]: With dead ends: 1648 [2022-12-14 06:46:24,556 INFO L226 Difference]: Without dead ends: 854 [2022-12-14 06:46:24,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:24,557 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 61 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:24,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 116 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:24,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-12-14 06:46:24,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 821. [2022-12-14 06:46:24,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 820 states have (on average 1.4121951219512194) internal successors, (1158), 820 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:24,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1158 transitions. [2022-12-14 06:46:24,574 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1158 transitions. Word has length 139 [2022-12-14 06:46:24,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:24,574 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 1158 transitions. [2022-12-14 06:46:24,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:24,574 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1158 transitions. [2022-12-14 06:46:24,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-12-14 06:46:24,576 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:24,576 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 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] [2022-12-14 06:46:24,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 06:46:24,576 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:46:24,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:24,576 INFO L85 PathProgramCache]: Analyzing trace with hash 295076120, now seen corresponding path program 1 times [2022-12-14 06:46:24,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:24,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241956241] [2022-12-14 06:46:24,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:24,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:24,657 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-12-14 06:46:24,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:24,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241956241] [2022-12-14 06:46:24,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241956241] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:24,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:24,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:46:24,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31610046] [2022-12-14 06:46:24,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:24,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:46:24,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:24,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:46:24,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:24,659 INFO L87 Difference]: Start difference. First operand 821 states and 1158 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:24,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:24,779 INFO L93 Difference]: Finished difference Result 1824 states and 2593 transitions. [2022-12-14 06:46:24,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:46:24,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 160 [2022-12-14 06:46:24,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:24,783 INFO L225 Difference]: With dead ends: 1824 [2022-12-14 06:46:24,783 INFO L226 Difference]: Without dead ends: 970 [2022-12-14 06:46:24,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:24,785 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 63 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:24,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 114 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:24,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2022-12-14 06:46:24,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 937. [2022-12-14 06:46:24,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 936 states have (on average 1.4081196581196582) internal successors, (1318), 936 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:24,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1318 transitions. [2022-12-14 06:46:24,815 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1318 transitions. Word has length 160 [2022-12-14 06:46:24,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:24,816 INFO L495 AbstractCegarLoop]: Abstraction has 937 states and 1318 transitions. [2022-12-14 06:46:24,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:24,816 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1318 transitions. [2022-12-14 06:46:24,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-12-14 06:46:24,819 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:24,819 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:24,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 06:46:24,819 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:46:24,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:24,820 INFO L85 PathProgramCache]: Analyzing trace with hash 308550939, now seen corresponding path program 1 times [2022-12-14 06:46:24,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:24,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693044107] [2022-12-14 06:46:24,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:24,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:24,961 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2022-12-14 06:46:24,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:24,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693044107] [2022-12-14 06:46:24,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693044107] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:24,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:24,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:46:24,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943632959] [2022-12-14 06:46:24,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:24,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:46:24,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:24,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:46:24,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:24,963 INFO L87 Difference]: Start difference. First operand 937 states and 1318 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:25,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:25,080 INFO L93 Difference]: Finished difference Result 2208 states and 3201 transitions. [2022-12-14 06:46:25,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:46:25,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 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 187 [2022-12-14 06:46:25,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:25,084 INFO L225 Difference]: With dead ends: 2208 [2022-12-14 06:46:25,085 INFO L226 Difference]: Without dead ends: 1254 [2022-12-14 06:46:25,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:25,087 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 65 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:25,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 112 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:25,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2022-12-14 06:46:25,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1201. [2022-12-14 06:46:25,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 1200 states have (on average 1.455) internal successors, (1746), 1200 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:25,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1746 transitions. [2022-12-14 06:46:25,117 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1746 transitions. Word has length 187 [2022-12-14 06:46:25,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:25,117 INFO L495 AbstractCegarLoop]: Abstraction has 1201 states and 1746 transitions. [2022-12-14 06:46:25,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:25,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1746 transitions. [2022-12-14 06:46:25,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-12-14 06:46:25,119 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:25,120 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 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] [2022-12-14 06:46:25,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 06:46:25,120 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:46:25,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:25,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1246163959, now seen corresponding path program 1 times [2022-12-14 06:46:25,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:25,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21175379] [2022-12-14 06:46:25,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:25,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 337 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2022-12-14 06:46:25,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:25,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21175379] [2022-12-14 06:46:25,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21175379] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:25,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:25,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:46:25,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56234554] [2022-12-14 06:46:25,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:25,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:46:25,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:25,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:46:25,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:25,211 INFO L87 Difference]: Start difference. First operand 1201 states and 1746 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:25,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:25,338 INFO L93 Difference]: Finished difference Result 2432 states and 3525 transitions. [2022-12-14 06:46:25,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:46:25,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2022-12-14 06:46:25,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:25,341 INFO L225 Difference]: With dead ends: 2432 [2022-12-14 06:46:25,341 INFO L226 Difference]: Without dead ends: 1222 [2022-12-14 06:46:25,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:25,343 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 66 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:25,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 109 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:25,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2022-12-14 06:46:25,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1189. [2022-12-14 06:46:25,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 1188 states have (on average 1.4393939393939394) internal successors, (1710), 1188 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:25,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1710 transitions. [2022-12-14 06:46:25,367 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1710 transitions. Word has length 220 [2022-12-14 06:46:25,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:25,367 INFO L495 AbstractCegarLoop]: Abstraction has 1189 states and 1710 transitions. [2022-12-14 06:46:25,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:25,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1710 transitions. [2022-12-14 06:46:25,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-12-14 06:46:25,369 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:25,370 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 06:46:25,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 06:46:25,370 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:46:25,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:25,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1091895284, now seen corresponding path program 1 times [2022-12-14 06:46:25,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:25,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490617085] [2022-12-14 06:46:25,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:25,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:25,529 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2022-12-14 06:46:25,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:25,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490617085] [2022-12-14 06:46:25,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490617085] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:25,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:25,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:46:25,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842546320] [2022-12-14 06:46:25,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:25,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:46:25,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:25,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:46:25,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:25,531 INFO L87 Difference]: Start difference. First operand 1189 states and 1710 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:25,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:25,651 INFO L93 Difference]: Finished difference Result 2552 states and 3653 transitions. [2022-12-14 06:46:25,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:46:25,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 233 [2022-12-14 06:46:25,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:25,654 INFO L225 Difference]: With dead ends: 2552 [2022-12-14 06:46:25,654 INFO L226 Difference]: Without dead ends: 1366 [2022-12-14 06:46:25,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:25,655 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 40 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:25,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 140 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:25,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2022-12-14 06:46:25,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1273. [2022-12-14 06:46:25,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1273 states, 1272 states have (on average 1.4261006289308176) internal successors, (1814), 1272 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:25,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 1814 transitions. [2022-12-14 06:46:25,683 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 1814 transitions. Word has length 233 [2022-12-14 06:46:25,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:25,683 INFO L495 AbstractCegarLoop]: Abstraction has 1273 states and 1814 transitions. [2022-12-14 06:46:25,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:25,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 1814 transitions. [2022-12-14 06:46:25,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-12-14 06:46:25,686 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:25,686 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:25,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 06:46:25,686 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:46:25,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:25,686 INFO L85 PathProgramCache]: Analyzing trace with hash -791568418, now seen corresponding path program 1 times [2022-12-14 06:46:25,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:25,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925474265] [2022-12-14 06:46:25,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:25,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:25,837 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 402 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2022-12-14 06:46:25,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:25,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925474265] [2022-12-14 06:46:25,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925474265] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:25,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:25,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:46:25,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303372241] [2022-12-14 06:46:25,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:25,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:46:25,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:25,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:46:25,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:25,839 INFO L87 Difference]: Start difference. First operand 1273 states and 1814 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:25,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:25,974 INFO L93 Difference]: Finished difference Result 2568 states and 3653 transitions. [2022-12-14 06:46:25,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:46:25,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 255 [2022-12-14 06:46:25,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:25,977 INFO L225 Difference]: With dead ends: 2568 [2022-12-14 06:46:25,977 INFO L226 Difference]: Without dead ends: 1298 [2022-12-14 06:46:25,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:25,979 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 67 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:25,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 114 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:25,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2022-12-14 06:46:26,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1273. [2022-12-14 06:46:26,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1273 states, 1272 states have (on average 1.4072327044025157) internal successors, (1790), 1272 states have internal predecessors, (1790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:26,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 1790 transitions. [2022-12-14 06:46:26,006 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 1790 transitions. Word has length 255 [2022-12-14 06:46:26,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:26,007 INFO L495 AbstractCegarLoop]: Abstraction has 1273 states and 1790 transitions. [2022-12-14 06:46:26,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:26,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 1790 transitions. [2022-12-14 06:46:26,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-12-14 06:46:26,009 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:26,010 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:26,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 06:46:26,010 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:46:26,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:26,010 INFO L85 PathProgramCache]: Analyzing trace with hash 282385300, now seen corresponding path program 1 times [2022-12-14 06:46:26,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:26,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609617625] [2022-12-14 06:46:26,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:26,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:26,177 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 437 proven. 11 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2022-12-14 06:46:26,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:26,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609617625] [2022-12-14 06:46:26,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609617625] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:46:26,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711748875] [2022-12-14 06:46:26,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:26,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:46:26,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:46:26,179 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:46:26,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 06:46:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:26,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 06:46:26,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:46:26,519 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 437 proven. 11 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2022-12-14 06:46:26,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:46:26,572 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 437 proven. 11 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2022-12-14 06:46:26,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711748875] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:46:26,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1919830682] [2022-12-14 06:46:26,575 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-12-14 06:46:26,575 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:46:26,575 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:46:26,575 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:46:26,575 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:46:52,691 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:47:18,127 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '31256#(and (= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (= |ULTIMATE.start_ssl3_connect_~tmp___0~0#1| 0) (<= |ULTIMATE.start_ssl3_connect_~tmp___4~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~tmp___7~0#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher~0#1|)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~tmp___3~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~tmp___7~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_compression__id~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~tmp___5~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~tmp___4~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~num1~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__bbio~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~s__init_buf___0~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__ctx__stats__sess_connect~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__cert_req~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~s__info_callback~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~cb~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~tmp___9~0#1| 2147483648)) (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__init_buf___0~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~tmp___9~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~s__bbio~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~cb~0#1| 2147483648)) (= |ULTIMATE.start_ssl3_connect_~skip~0#1| 0) (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__ctx__info_callback~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~ret~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__wbio~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__debug~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~num1~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__s3__tmp__reuse_message~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~tmp___5~0#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_connect_~ret~0#1|)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__s3__tmp__cert_req~0#1| 2147483648)) (= |ULTIMATE.start_ssl3_connect_~state~0#1| |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_compression~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__info_callback~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__reuse_message~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~tmp~0#1| 2147483647) (= |#NULL.offset| 0) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_compression__id~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~s__ctx__info_callback~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~tmp___8~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~tmp___6~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_compression~0#1| 2147483647) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_ssl3_connect_~s__wbio~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~tmp___3~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~tmp___6~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_connect_~tmp___8~0#1| 2147483647) (= |#NULL.base| 0) (<= |ULTIMATE.start_ssl3_connect_~s__debug~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_connect_~tmp~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 2147483647))' at error location [2022-12-14 06:47:18,127 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:47:18,127 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:47:18,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-12-14 06:47:18,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997882768] [2022-12-14 06:47:18,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:47:18,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:47:18,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:47:18,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:47:18,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1001, Invalid=4401, Unknown=0, NotChecked=0, Total=5402 [2022-12-14 06:47:18,129 INFO L87 Difference]: Start difference. First operand 1273 states and 1790 transitions. Second operand has 8 states, 8 states have (on average 29.625) internal successors, (237), 8 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:47:18,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:47:18,632 INFO L93 Difference]: Finished difference Result 3488 states and 4937 transitions. [2022-12-14 06:47:18,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:47:18,633 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 29.625) internal successors, (237), 8 states have internal predecessors, (237), 0 states have call successors, (0), 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 270 [2022-12-14 06:47:18,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:47:18,637 INFO L225 Difference]: With dead ends: 3488 [2022-12-14 06:47:18,637 INFO L226 Difference]: Without dead ends: 2210 [2022-12-14 06:47:18,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 818 GetRequests, 743 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1170 ImplicationChecksByTransitivity, 25.5s TimeCoverageRelationStatistics Valid=1025, Invalid=4827, Unknown=0, NotChecked=0, Total=5852 [2022-12-14 06:47:18,640 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 218 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:47:18,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 373 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 06:47:18,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2022-12-14 06:47:18,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 1696. [2022-12-14 06:47:18,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1695 states have (on average 1.3787610619469026) internal successors, (2337), 1695 states have internal predecessors, (2337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:47:18,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 2337 transitions. [2022-12-14 06:47:18,684 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 2337 transitions. Word has length 270 [2022-12-14 06:47:18,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:47:18,685 INFO L495 AbstractCegarLoop]: Abstraction has 1696 states and 2337 transitions. [2022-12-14 06:47:18,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.625) internal successors, (237), 8 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:47:18,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 2337 transitions. [2022-12-14 06:47:18,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-12-14 06:47:18,688 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:47:18,689 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 10, 9, 9, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:47:18,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 06:47:18,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 06:47:18,889 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:47:18,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:47:18,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1111314046, now seen corresponding path program 1 times [2022-12-14 06:47:18,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:47:18,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630040458] [2022-12-14 06:47:18,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:47:18,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:47:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:47:19,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 645 proven. 45 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2022-12-14 06:47:19,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:47:19,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630040458] [2022-12-14 06:47:19,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630040458] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:47:19,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522617011] [2022-12-14 06:47:19,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:47:19,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:47:19,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:47:19,089 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:47:19,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 06:47:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:47:19,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 06:47:19,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:47:19,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 414 proven. 93 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2022-12-14 06:47:19,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:47:19,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 899 trivial. 0 not checked. [2022-12-14 06:47:19,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522617011] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 06:47:19,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 06:47:19,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 4] total 9 [2022-12-14 06:47:19,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449446602] [2022-12-14 06:47:19,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:47:19,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:47:19,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:47:19,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:47:19,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:47:19,338 INFO L87 Difference]: Start difference. First operand 1696 states and 2337 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:47:19,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:47:19,424 INFO L93 Difference]: Finished difference Result 3399 states and 4681 transitions. [2022-12-14 06:47:19,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:47:19,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 306 [2022-12-14 06:47:19,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:47:19,428 INFO L225 Difference]: With dead ends: 3399 [2022-12-14 06:47:19,428 INFO L226 Difference]: Without dead ends: 1706 [2022-12-14 06:47:19,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:47:19,430 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 83 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:47:19,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 56 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:47:19,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2022-12-14 06:47:19,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1696. [2022-12-14 06:47:19,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1695 states have (on average 1.3716814159292035) internal successors, (2325), 1695 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:47:19,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 2325 transitions. [2022-12-14 06:47:19,475 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 2325 transitions. Word has length 306 [2022-12-14 06:47:19,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:47:19,475 INFO L495 AbstractCegarLoop]: Abstraction has 1696 states and 2325 transitions. [2022-12-14 06:47:19,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:47:19,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 2325 transitions. [2022-12-14 06:47:19,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-12-14 06:47:19,479 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:47:19,479 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 14, 12, 12, 10, 10, 9, 9, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 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] [2022-12-14 06:47:19,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 06:47:19,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-14 06:47:19,679 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:47:19,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:47:19,680 INFO L85 PathProgramCache]: Analyzing trace with hash -931938313, now seen corresponding path program 1 times [2022-12-14 06:47:19,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:47:19,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667711572] [2022-12-14 06:47:19,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:47:19,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:47:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:47:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1325 backedges. 748 proven. 42 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2022-12-14 06:47:19,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:47:19,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667711572] [2022-12-14 06:47:19,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667711572] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:47:19,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298809250] [2022-12-14 06:47:19,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:47:19,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:47:19,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:47:19,862 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:47:19,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 06:47:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:47:19,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 06:47:19,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:47:20,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1325 backedges. 517 proven. 90 refuted. 0 times theorem prover too weak. 718 trivial. 0 not checked. [2022-12-14 06:47:20,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:47:20,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1325 backedges. 415 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2022-12-14 06:47:20,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298809250] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 06:47:20,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 06:47:20,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 4] total 9 [2022-12-14 06:47:20,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480637860] [2022-12-14 06:47:20,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:47:20,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:47:20,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:47:20,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:47:20,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:47:20,074 INFO L87 Difference]: Start difference. First operand 1696 states and 2325 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:47:20,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:47:20,165 INFO L93 Difference]: Finished difference Result 3399 states and 4657 transitions. [2022-12-14 06:47:20,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:47:20,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 316 [2022-12-14 06:47:20,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:47:20,168 INFO L225 Difference]: With dead ends: 3399 [2022-12-14 06:47:20,168 INFO L226 Difference]: Without dead ends: 1706 [2022-12-14 06:47:20,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 636 GetRequests, 629 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:47:20,169 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 88 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:47:20,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 66 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:47:20,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2022-12-14 06:47:20,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1696. [2022-12-14 06:47:20,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1695 states have (on average 1.3646017699115045) internal successors, (2313), 1695 states have internal predecessors, (2313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:47:20,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 2313 transitions. [2022-12-14 06:47:20,210 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 2313 transitions. Word has length 316 [2022-12-14 06:47:20,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:47:20,210 INFO L495 AbstractCegarLoop]: Abstraction has 1696 states and 2313 transitions. [2022-12-14 06:47:20,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:47:20,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 2313 transitions. [2022-12-14 06:47:20,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-12-14 06:47:20,212 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:47:20,212 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 14, 13, 12, 10, 10, 9, 9, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 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] [2022-12-14 06:47:20,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 06:47:20,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:47:20,413 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:47:20,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:47:20,414 INFO L85 PathProgramCache]: Analyzing trace with hash -419120156, now seen corresponding path program 1 times [2022-12-14 06:47:20,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:47:20,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205597807] [2022-12-14 06:47:20,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:47:20,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:47:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:47:20,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 759 proven. 43 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2022-12-14 06:47:20,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:47:20,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205597807] [2022-12-14 06:47:20,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205597807] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:47:20,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441216648] [2022-12-14 06:47:20,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:47:20,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:47:20,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:47:20,636 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:47:20,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 06:47:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:47:20,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 06:47:20,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:47:20,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 528 proven. 91 refuted. 0 times theorem prover too weak. 718 trivial. 0 not checked. [2022-12-14 06:47:20,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:47:20,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 427 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2022-12-14 06:47:20,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441216648] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 06:47:20,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 06:47:20,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 4] total 9 [2022-12-14 06:47:20,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149691569] [2022-12-14 06:47:20,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:47:20,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:47:20,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:47:20,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:47:20,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:47:20,858 INFO L87 Difference]: Start difference. First operand 1696 states and 2313 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:47:20,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:47:20,942 INFO L93 Difference]: Finished difference Result 2885 states and 3912 transitions. [2022-12-14 06:47:20,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:47:20,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 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 317 [2022-12-14 06:47:20,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:47:20,944 INFO L225 Difference]: With dead ends: 2885 [2022-12-14 06:47:20,944 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 06:47:20,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 631 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:47:20,946 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 85 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:47:20,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 51 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:47:20,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 06:47:20,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 06:47:20,947 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) [2022-12-14 06:47:20,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 06:47:20,947 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 317 [2022-12-14 06:47:20,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:47:20,947 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 06:47:20,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:47:20,947 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 06:47:20,947 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 06:47:20,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 06:47:20,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 06:47:21,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-14 06:47:21,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 06:47:22,920 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 371) no Hoare annotation was computed. [2022-12-14 06:47:22,920 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 252) no Hoare annotation was computed. [2022-12-14 06:47:22,920 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 551) no Hoare annotation was computed. [2022-12-14 06:47:22,920 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 562) no Hoare annotation was computed. [2022-12-14 06:47:22,920 INFO L899 garLoopResultBuilder]: For program point L235-2(lines 213 545) no Hoare annotation was computed. [2022-12-14 06:47:22,921 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 573) no Hoare annotation was computed. [2022-12-14 06:47:22,921 INFO L899 garLoopResultBuilder]: For program point L501-1(lines 501 513) no Hoare annotation was computed. [2022-12-14 06:47:22,921 INFO L899 garLoopResultBuilder]: For program point L435(lines 435 439) no Hoare annotation was computed. [2022-12-14 06:47:22,921 INFO L899 garLoopResultBuilder]: For program point L237(lines 237 242) no Hoare annotation was computed. [2022-12-14 06:47:22,921 INFO L895 garLoopResultBuilder]: At program point L205(lines 205 550) the Hoare annotation is: (let ((.cse0 (not (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse1 (not (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|))) (.cse2 (not (= 4385 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse4 (not (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse5 (not (= 4369 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse3 (or (= 3 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) (= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|)))) (or (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (not (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) .cse0 .cse1 .cse2 .cse4 .cse5) (and .cse3 (= 3 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) [2022-12-14 06:47:22,921 INFO L899 garLoopResultBuilder]: For program point L172(lines 172 561) no Hoare annotation was computed. [2022-12-14 06:47:22,921 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 572) no Hoare annotation was computed. [2022-12-14 06:47:22,921 INFO L899 garLoopResultBuilder]: For program point L504(lines 504 509) no Hoare annotation was computed. [2022-12-14 06:47:22,921 INFO L899 garLoopResultBuilder]: For program point L273-2(lines 213 545) no Hoare annotation was computed. [2022-12-14 06:47:22,921 INFO L895 garLoopResultBuilder]: At program point ssl3_connect_switch_1_4433#1(lines 151 568) the Hoare annotation is: (and (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (not (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4448)) [2022-12-14 06:47:22,922 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 410) no Hoare annotation was computed. [2022-12-14 06:47:22,922 INFO L899 garLoopResultBuilder]: For program point L340-2(lines 213 545) no Hoare annotation was computed. [2022-12-14 06:47:22,922 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 560) no Hoare annotation was computed. [2022-12-14 06:47:22,922 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 571) no Hoare annotation was computed. [2022-12-14 06:47:22,922 INFO L895 garLoopResultBuilder]: At program point L109-1(lines 109 612) the Hoare annotation is: (let ((.cse0 (not (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|))) (.cse1 (or (= 3 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) (= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|)))) (or (and .cse0 (= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse1) (and (not (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) .cse0) (and (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse0 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4528)) (and (not (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4432) .cse0 (or (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 3) (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4385 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) .cse1 (not (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4369 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))))) [2022-12-14 06:47:22,922 INFO L895 garLoopResultBuilder]: At program point ssl3_connect_switch_1_4417#1(lines 145 570) the Hoare annotation is: (and (not (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4432) (not (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (or (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 3) (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4385 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4369 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) [2022-12-14 06:47:22,922 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 248) no Hoare annotation was computed. [2022-12-14 06:47:22,922 INFO L899 garLoopResultBuilder]: For program point L178(lines 178 559) no Hoare annotation was computed. [2022-12-14 06:47:22,922 INFO L899 garLoopResultBuilder]: For program point L145(lines 145 570) no Hoare annotation was computed. [2022-12-14 06:47:22,922 INFO L895 garLoopResultBuilder]: At program point L112(lines 112 581) the Hoare annotation is: (let ((.cse0 (not (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|))) (.cse1 (or (= 3 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) (= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|)))) (or (and .cse0 (= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse1) (and (not (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) .cse0) (and (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse0 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4528)) (and (not (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4432) .cse0 (or (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 3) (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4385 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) .cse1 (not (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4369 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))))) [2022-12-14 06:47:22,923 INFO L899 garLoopResultBuilder]: For program point L443-2(lines 213 545) no Hoare annotation was computed. [2022-12-14 06:47:22,923 INFO L895 garLoopResultBuilder]: At program point ssl3_connect_switch_1_4481#1(lines 175 560) the Hoare annotation is: (and (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (not (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4512)) [2022-12-14 06:47:22,923 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2022-12-14 06:47:22,923 INFO L895 garLoopResultBuilder]: At program point ssl3_connect_switch_1_4513#1(lines 187 556) the Hoare annotation is: (and (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (not (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4528)) [2022-12-14 06:47:22,923 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 558) no Hoare annotation was computed. [2022-12-14 06:47:22,923 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 569) no Hoare annotation was computed. [2022-12-14 06:47:22,923 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 580) no Hoare annotation was computed. [2022-12-14 06:47:22,923 INFO L895 garLoopResultBuilder]: At program point ssl3_connect_ERROR#1(lines 76 630) the Hoare annotation is: false [2022-12-14 06:47:22,923 INFO L895 garLoopResultBuilder]: At program point ssl3_connect_switch_1_4449#1(lines 157 566) the Hoare annotation is: (and (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (not (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4480)) [2022-12-14 06:47:22,923 INFO L902 garLoopResultBuilder]: At program point L613(lines 76 630) the Hoare annotation is: true [2022-12-14 06:47:22,923 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 557) no Hoare annotation was computed. [2022-12-14 06:47:22,923 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 568) no Hoare annotation was computed. [2022-12-14 06:47:22,924 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 579) no Hoare annotation was computed. [2022-12-14 06:47:22,924 INFO L895 garLoopResultBuilder]: At program point ssl3_connect_switch_1_4497#1(lines 181 558) the Hoare annotation is: (and (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (not (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4512)) [2022-12-14 06:47:22,924 INFO L895 garLoopResultBuilder]: At program point L218(lines 115 580) the Hoare annotation is: (and (not (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (not (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (not (= 4385 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4369 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) [2022-12-14 06:47:22,924 INFO L895 garLoopResultBuilder]: At program point ssl3_connect_switch_1_4561#1(lines 199 552) the Hoare annotation is: (let ((.cse0 (not (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)))) (or (and .cse0 (= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (or (= 3 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) (= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|))) (and (not (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) .cse0 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) [2022-12-14 06:47:22,924 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 610) no Hoare annotation was computed. [2022-12-14 06:47:22,924 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 607) no Hoare annotation was computed. [2022-12-14 06:47:22,924 INFO L899 garLoopResultBuilder]: For program point L352(lines 352 357) no Hoare annotation was computed. [2022-12-14 06:47:22,924 INFO L899 garLoopResultBuilder]: For program point L319-1(lines 319 333) no Hoare annotation was computed. [2022-12-14 06:47:22,924 INFO L899 garLoopResultBuilder]: For program point L187(lines 187 556) no Hoare annotation was computed. [2022-12-14 06:47:22,924 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 567) no Hoare annotation was computed. [2022-12-14 06:47:22,924 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 578) no Hoare annotation was computed. [2022-12-14 06:47:22,924 INFO L899 garLoopResultBuilder]: For program point L584(lines 584 593) no Hoare annotation was computed. [2022-12-14 06:47:22,924 INFO L899 garLoopResultBuilder]: For program point L584-2(lines 583 605) no Hoare annotation was computed. [2022-12-14 06:47:22,924 INFO L895 garLoopResultBuilder]: At program point ssl3_connect_switch_1_4529#1(lines 193 554) the Hoare annotation is: (and (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (not (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|))) [2022-12-14 06:47:22,924 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 590) no Hoare annotation was computed. [2022-12-14 06:47:22,924 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 459) no Hoare annotation was computed. [2022-12-14 06:47:22,924 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 06:47:22,924 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 555) no Hoare annotation was computed. [2022-12-14 06:47:22,924 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 566) no Hoare annotation was computed. [2022-12-14 06:47:22,924 INFO L899 garLoopResultBuilder]: For program point L223-2(lines 213 545) no Hoare annotation was computed. [2022-12-14 06:47:22,924 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 577) no Hoare annotation was computed. [2022-12-14 06:47:22,925 INFO L895 garLoopResultBuilder]: At program point ssl3_connect_switch_1_4385#1(lines 133 574) the Hoare annotation is: (and (not (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4432) (not (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (or (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 3) (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4369 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) [2022-12-14 06:47:22,925 INFO L895 garLoopResultBuilder]: At program point $Ultimate##192(lines 501 513) the Hoare annotation is: (let ((.cse0 (not (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|))) (.cse1 (or (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 3) (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4352))) (or (and (not (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (or (= 3 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) (= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|))))) [2022-12-14 06:47:22,925 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 492) no Hoare annotation was computed. [2022-12-14 06:47:22,925 INFO L899 garLoopResultBuilder]: For program point L323-2(lines 321 333) no Hoare annotation was computed. [2022-12-14 06:47:22,925 INFO L899 garLoopResultBuilder]: For program point L423(lines 423 427) no Hoare annotation was computed. [2022-12-14 06:47:22,925 INFO L895 garLoopResultBuilder]: At program point ssl3_connect_switch_1_4369#1(lines 127 576) the Hoare annotation is: (and (not (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (not (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4432) (not (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (or (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 3) (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4385 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) [2022-12-14 06:47:22,925 INFO L895 garLoopResultBuilder]: At program point $Ultimate##137(lines 319 333) the Hoare annotation is: (let ((.cse0 (not (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse1 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4432)) (.cse2 (not (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|))) (.cse3 (or (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 3) (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse4 (not (= 4385 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse5 (not (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse6 (not (= 4369 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (or (= 3 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) (= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|)) .cse5 .cse6) (and (not (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6))) [2022-12-14 06:47:22,925 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 264) no Hoare annotation was computed. [2022-12-14 06:47:22,925 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 554) no Hoare annotation was computed. [2022-12-14 06:47:22,925 INFO L899 garLoopResultBuilder]: For program point L160(lines 160 565) no Hoare annotation was computed. [2022-12-14 06:47:22,925 INFO L899 garLoopResultBuilder]: For program point L127(lines 127 576) no Hoare annotation was computed. [2022-12-14 06:47:22,925 INFO L895 garLoopResultBuilder]: At program point ssl3_connect_switch_1_4467#1(lines 163 564) the Hoare annotation is: (and (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (not (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4480)) [2022-12-14 06:47:22,925 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 06:47:22,925 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 553) no Hoare annotation was computed. [2022-12-14 06:47:22,925 INFO L899 garLoopResultBuilder]: For program point L163(lines 163 564) no Hoare annotation was computed. [2022-12-14 06:47:22,925 INFO L899 garLoopResultBuilder]: For program point L130(lines 130 575) no Hoare annotation was computed. [2022-12-14 06:47:22,925 INFO L895 garLoopResultBuilder]: At program point $Ultimate##209(lines 582 610) the Hoare annotation is: (let ((.cse0 (not (= 5 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|))) (.cse1 (or (= 3 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) (= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|)))) (or (and .cse0 (= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse1) (and (not (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) .cse0) (and (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse0 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4528)) (and (not (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4432) .cse0 (or (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 3) (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4385 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) .cse1 (not (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4369 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))))) [2022-12-14 06:47:22,925 INFO L899 garLoopResultBuilder]: For program point L395(lines 395 399) no Hoare annotation was computed. [2022-12-14 06:47:22,926 INFO L899 garLoopResultBuilder]: For program point L362(lines 362 366) no Hoare annotation was computed. [2022-12-14 06:47:22,926 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 624) no Hoare annotation was computed. [2022-12-14 06:47:22,926 INFO L902 garLoopResultBuilder]: At program point L628(lines 76 630) the Hoare annotation is: true [2022-12-14 06:47:22,926 INFO L899 garLoopResultBuilder]: For program point L298-2(lines 213 545) no Hoare annotation was computed. [2022-12-14 06:47:22,926 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 552) no Hoare annotation was computed. [2022-12-14 06:47:22,926 INFO L899 garLoopResultBuilder]: For program point L166(lines 166 563) no Hoare annotation was computed. [2022-12-14 06:47:22,926 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 574) no Hoare annotation was computed. [2022-12-14 06:47:22,926 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 468) no Hoare annotation was computed. [2022-12-14 06:47:22,928 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:47:22,929 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:47:22,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:47:22 BoogieIcfgContainer [2022-12-14 06:47:22,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:47:22,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:47:22,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:47:22,942 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:47:22,942 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:46:11" (3/4) ... [2022-12-14 06:47:22,944 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 06:47:22,954 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2022-12-14 06:47:22,954 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-14 06:47:22,954 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 06:47:22,955 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 06:47:22,998 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 06:47:22,998 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:47:22,999 INFO L158 Benchmark]: Toolchain (without parser) took 72215.79ms. Allocated memory was 115.3MB in the beginning and 536.9MB in the end (delta: 421.5MB). Free memory was 84.2MB in the beginning and 246.9MB in the end (delta: -162.7MB). Peak memory consumption was 260.3MB. Max. memory is 16.1GB. [2022-12-14 06:47:22,999 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:47:22,999 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.47ms. Allocated memory is still 115.3MB. Free memory was 84.2MB in the beginning and 69.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 06:47:22,999 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.27ms. Allocated memory is still 115.3MB. Free memory was 69.0MB in the beginning and 66.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:47:22,999 INFO L158 Benchmark]: Boogie Preprocessor took 33.96ms. Allocated memory is still 115.3MB. Free memory was 66.0MB in the beginning and 63.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:47:22,999 INFO L158 Benchmark]: RCFGBuilder took 692.63ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 63.9MB in the beginning and 66.4MB in the end (delta: -2.4MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2022-12-14 06:47:23,000 INFO L158 Benchmark]: TraceAbstraction took 71142.82ms. Allocated memory was 138.4MB in the beginning and 536.9MB in the end (delta: 398.5MB). Free memory was 65.6MB in the beginning and 254.2MB in the end (delta: -188.6MB). Peak memory consumption was 303.1MB. Max. memory is 16.1GB. [2022-12-14 06:47:23,000 INFO L158 Benchmark]: Witness Printer took 56.26ms. Allocated memory is still 536.9MB. Free memory was 254.2MB in the beginning and 246.9MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 06:47:23,001 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.47ms. Allocated memory is still 115.3MB. Free memory was 84.2MB in the beginning and 69.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.27ms. Allocated memory is still 115.3MB. Free memory was 69.0MB in the beginning and 66.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.96ms. Allocated memory is still 115.3MB. Free memory was 66.0MB in the beginning and 63.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 692.63ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 63.9MB in the beginning and 66.4MB in the end (delta: -2.4MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. * TraceAbstraction took 71142.82ms. Allocated memory was 138.4MB in the beginning and 536.9MB in the end (delta: 398.5MB). Free memory was 65.6MB in the beginning and 254.2MB in the end (delta: -188.6MB). Peak memory consumption was 303.1MB. Max. memory is 16.1GB. * Witness Printer took 56.26ms. Allocated memory is still 536.9MB. Free memory was 254.2MB in the beginning and 246.9MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 624]: 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, 84 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 71.1s, OverallIterations: 16, TraceHistogramMax: 15, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1350 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1350 mSDsluCounter, 2637 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1118 mSDsCounter, 456 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2353 IncrementalHoareTripleChecker+Invalid, 2809 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 456 mSolverCounterUnsat, 1519 mSDtfsCounter, 2353 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2898 GetRequests, 2757 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1405 ImplicationChecksByTransitivity, 33.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1696occurred in iteration=13, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 16 MinimizatonAttempts, 944 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 21 PreInvPairs, 192 NumberOfFragments, 621 HoareAnnotationTreeSize, 21 FomulaSimplifications, 8722 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 21 FomulaSimplificationsInter, 22790 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 4020 NumberOfCodeBlocks, 4020 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 5255 ConstructedInterpolants, 0 QuantifiedInterpolants, 8746 SizeOfPredicates, 17 NumberOfNonLiveVariables, 2344 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 26 InterpolantComputations, 14 PerfectInterpolantSequences, 18496/19021 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: 127]: Loop Invariant Derived loop invariant: ((((!(blastFlag == 4) && !(4384 == s__state)) && s__state <= 4432) && !(5 == blastFlag)) && (s__state <= 3 || 4352 <= s__state)) && !(4385 == s__state) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: (4432 <= s__state && !(5 == blastFlag)) && s__state <= 4448 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: ((((!(blastFlag == 4) && s__state <= 4432) && !(5 == blastFlag)) && (s__state <= 3 || 4352 <= s__state)) && !(4368 == s__state)) && !(4369 == s__state) - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: ((((!(5 == blastFlag) && 4560 == s__state) && (3 == s__s3__tmp__next_state___0 || 4560 == s__s3__tmp__next_state___0)) || (!(blastFlag == 4) && !(5 == blastFlag))) || ((4432 <= s__state && !(5 == blastFlag)) && s__state <= 4528)) || (((((((!(4384 == s__state) && s__state <= 4432) && !(5 == blastFlag)) && (s__state <= 3 || 4352 <= s__state)) && !(4385 == s__state)) && (3 == s__s3__tmp__next_state___0 || 4560 == s__s3__tmp__next_state___0)) && !(4368 == s__state)) && !(4369 == s__state)) - InvariantResult [Line: 501]: Loop Invariant Derived loop invariant: (((!(blastFlag == 4) && !(5 == blastFlag)) && (s__state <= 3 || 4352 <= s__state)) && s__state <= 4352) || (((!(5 == blastFlag) && (s__state <= 3 || 4352 <= s__state)) && s__state <= 4352) && (3 == s__s3__tmp__next_state___0 || 4560 == s__s3__tmp__next_state___0)) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((!(5 == blastFlag) && 4560 == s__state) && (3 == s__s3__tmp__next_state___0 || 4560 == s__s3__tmp__next_state___0)) || (!(blastFlag == 4) && !(5 == blastFlag))) || ((4432 <= s__state && !(5 == blastFlag)) && s__state <= 4528)) || (((((((!(4384 == s__state) && s__state <= 4432) && !(5 == blastFlag)) && (s__state <= 3 || 4352 <= s__state)) && !(4385 == s__state)) && (3 == s__s3__tmp__next_state___0 || 4560 == s__s3__tmp__next_state___0)) && !(4368 == s__state)) && !(4369 == s__state)) - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: (4432 <= s__state && !(5 == blastFlag)) && s__state <= 4480 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: (4432 <= s__state && !(5 == blastFlag)) && s__state <= 4480 - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: ((((!(blastFlag == 4) && !(4384 == s__state)) && !(5 == blastFlag)) && !(4385 == s__state)) && !(4368 == s__state)) && !(4369 == s__state) - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 4432 <= s__state && !(5 == blastFlag) - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: ((4432 <= s__state || (((((!(4384 == s__state) && !(5 == blastFlag)) && !(4385 == s__state)) && (3 == s__s3__tmp__next_state___0 || 4560 == s__s3__tmp__next_state___0)) && !(4368 == s__state)) && !(4369 == s__state))) || (((((!(blastFlag == 4) && !(4384 == s__state)) && !(5 == blastFlag)) && !(4385 == s__state)) && !(4368 == s__state)) && !(4369 == s__state))) || ((3 == s__s3__tmp__next_state___0 || 4560 == s__s3__tmp__next_state___0) && 3 == s__state) - InvariantResult [Line: 145]: Loop Invariant Derived loop invariant: (((((!(4384 == s__state) && s__state <= 4432) && !(5 == blastFlag)) && (s__state <= 3 || 4352 <= s__state)) && !(4385 == s__state)) && !(4368 == s__state)) && !(4369 == s__state) - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: (4432 <= s__state && !(5 == blastFlag)) && s__state <= 4528 - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: ((((!(5 == blastFlag) && 4560 == s__state) && (3 == s__s3__tmp__next_state___0 || 4560 == s__s3__tmp__next_state___0)) || (!(blastFlag == 4) && !(5 == blastFlag))) || ((4432 <= s__state && !(5 == blastFlag)) && s__state <= 4528)) || (((((((!(4384 == s__state) && s__state <= 4432) && !(5 == blastFlag)) && (s__state <= 3 || 4352 <= s__state)) && !(4385 == s__state)) && (3 == s__s3__tmp__next_state___0 || 4560 == s__s3__tmp__next_state___0)) && !(4368 == s__state)) && !(4369 == s__state)) - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: (4432 <= s__state && !(5 == blastFlag)) && s__state <= 4512 - InvariantResult [Line: 319]: Loop Invariant Derived loop invariant: (((((((!(4384 == s__state) && s__state <= 4432) && !(5 == blastFlag)) && (s__state <= 3 || 4352 <= s__state)) && !(4385 == s__state)) && (3 == s__s3__tmp__next_state___0 || 4560 == s__s3__tmp__next_state___0)) && !(4368 == s__state)) && !(4369 == s__state)) || (((((((!(blastFlag == 4) && !(4384 == s__state)) && s__state <= 4432) && !(5 == blastFlag)) && (s__state <= 3 || 4352 <= s__state)) && !(4385 == s__state)) && !(4368 == s__state)) && !(4369 == s__state)) - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: ((!(5 == blastFlag) && 4560 == s__state) && (3 == s__s3__tmp__next_state___0 || 4560 == s__s3__tmp__next_state___0)) || ((!(blastFlag == 4) && !(5 == blastFlag)) && 4560 <= s__state) - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: (4432 <= s__state && !(5 == blastFlag)) && s__state <= 4512 - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 06:47:23,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08e37a1-e442-459f-a31e-d7d68bfdbcf7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE