./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/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_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a3777e2ab1819fd82e3658352e2b99c7da6626d046ae65288a9623558224827f --- 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 09:12:36,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:12:36,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:12:36,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:12:36,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:12:36,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:12:36,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:12:36,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:12:36,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:12:36,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:12:36,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:12:36,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:12:36,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:12:36,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:12:36,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:12:36,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:12:36,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:12:36,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:12:36,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:12:36,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:12:36,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:12:36,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:12:36,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:12:36,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:12:36,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:12:36,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:12:36,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:12:36,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:12:36,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:12:36,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:12:36,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:12:36,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:12:36,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:12:36,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:12:36,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:12:36,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:12:36,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:12:36,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:12:36,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:12:36,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:12:36,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:12:36,463 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 09:12:36,486 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:12:36,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:12:36,487 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:12:36,487 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:12:36,488 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:12:36,488 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:12:36,488 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:12:36,488 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:12:36,489 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:12:36,489 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:12:36,489 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:12:36,489 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:12:36,489 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:12:36,490 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:12:36,490 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:12:36,490 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:12:36,490 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:12:36,490 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:12:36,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:12:36,491 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:12:36,492 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:12:36,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:12:36,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:12:36,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:12:36,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:12:36,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:12:36,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:12:36,493 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 09:12:36,493 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:12:36,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:12:36,493 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:12:36,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:12:36,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:12:36,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:12:36,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:12:36,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:12:36,495 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:12:36,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:12:36,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:12:36,495 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:12:36,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:12:36,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:12:36,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:12:36,496 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_ceb97968-1582-48da-b47e-db4d2c81c1ca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3777e2ab1819fd82e3658352e2b99c7da6626d046ae65288a9623558224827f [2022-12-14 09:12:36,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:12:36,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:12:36,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:12:36,704 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:12:36,704 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:12:36,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c [2022-12-14 09:12:39,270 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:12:39,430 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:12:39,430 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c [2022-12-14 09:12:39,440 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/data/eed3267ed/fca0692fdac64215b8ef7dee3210e89d/FLAG691dfae44 [2022-12-14 09:12:39,452 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/data/eed3267ed/fca0692fdac64215b8ef7dee3210e89d [2022-12-14 09:12:39,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:12:39,455 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:12:39,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:12:39,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:12:39,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:12:39,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:12:39" (1/1) ... [2022-12-14 09:12:39,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ca3d98e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:12:39, skipping insertion in model container [2022-12-14 09:12:39,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:12:39" (1/1) ... [2022-12-14 09:12:39,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:12:39,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:12:39,666 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_ceb97968-1582-48da-b47e-db4d2c81c1ca/sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c[44949,44962] [2022-12-14 09:12:39,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:12:39,680 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:12:39,727 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_ceb97968-1582-48da-b47e-db4d2c81c1ca/sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c[44949,44962] [2022-12-14 09:12:39,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:12:39,739 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:12:39,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:12:39 WrapperNode [2022-12-14 09:12:39,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:12:39,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:12:39,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:12:39,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:12:39,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:12:39" (1/1) ... [2022-12-14 09:12:39,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:12:39" (1/1) ... [2022-12-14 09:12:39,787 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 525 [2022-12-14 09:12:39,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:12:39,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:12:39,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:12:39,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:12:39,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:12:39" (1/1) ... [2022-12-14 09:12:39,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:12:39" (1/1) ... [2022-12-14 09:12:39,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:12:39" (1/1) ... [2022-12-14 09:12:39,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:12:39" (1/1) ... [2022-12-14 09:12:39,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:12:39" (1/1) ... [2022-12-14 09:12:39,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:12:39" (1/1) ... [2022-12-14 09:12:39,818 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:12:39" (1/1) ... [2022-12-14 09:12:39,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:12:39" (1/1) ... [2022-12-14 09:12:39,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:12:39,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:12:39,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:12:39,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:12:39,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:12:39" (1/1) ... [2022-12-14 09:12:39,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:12:39,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:12:39,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:12:39,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:12:39,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:12:39,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:12:39,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:12:39,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:12:39,962 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:12:39,964 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:12:39,975 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-12-14 09:12:40,362 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-12-14 09:12:40,362 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-12-14 09:12:40,362 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:12:40,458 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:12:40,458 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 09:12:40,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:12:40 BoogieIcfgContainer [2022-12-14 09:12:40,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:12:40,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:12:40,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:12:40,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:12:40,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:12:39" (1/3) ... [2022-12-14 09:12:40,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544589e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:12:40, skipping insertion in model container [2022-12-14 09:12:40,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:12:39" (2/3) ... [2022-12-14 09:12:40,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544589e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:12:40, skipping insertion in model container [2022-12-14 09:12:40,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:12:40" (3/3) ... [2022-12-14 09:12:40,466 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.BV.c.cil.c [2022-12-14 09:12:40,479 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:12:40,480 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 09:12:40,515 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:12:40,520 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;@48596542, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:12:40,520 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 09:12:40,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 107 states have (on average 1.7757009345794392) internal successors, (190), 111 states have internal predecessors, (190), 0 states have call successors, (0), 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 09:12:40,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 09:12:40,528 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:12:40,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:12:40,529 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:12:40,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:12:40,533 INFO L85 PathProgramCache]: Analyzing trace with hash -764939301, now seen corresponding path program 1 times [2022-12-14 09:12:40,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:12:40,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025479147] [2022-12-14 09:12:40,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:12:40,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:12:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:12:40,786 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 09:12:40,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:12:40,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025479147] [2022-12-14 09:12:40,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025479147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:12:40,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:12:40,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:12:40,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529231080] [2022-12-14 09:12:40,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:12:40,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:12:40,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:12:40,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:12:40,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:12:40,822 INFO L87 Difference]: Start difference. First operand has 112 states, 107 states have (on average 1.7757009345794392) internal successors, (190), 111 states have internal predecessors, (190), 0 states have call successors, (0), 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 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:12:40,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:12:40,993 INFO L93 Difference]: Finished difference Result 243 states and 412 transitions. [2022-12-14 09:12:40,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:12:40,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 09:12:40,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:12:41,002 INFO L225 Difference]: With dead ends: 243 [2022-12-14 09:12:41,002 INFO L226 Difference]: Without dead ends: 126 [2022-12-14 09:12:41,004 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 09:12:41,006 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 27 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:12:41,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 249 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:12:41,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-12-14 09:12:41,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 124. [2022-12-14 09:12:41,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 120 states have (on average 1.4916666666666667) internal successors, (179), 123 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:12:41,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 179 transitions. [2022-12-14 09:12:41,035 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 179 transitions. Word has length 11 [2022-12-14 09:12:41,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:12:41,035 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 179 transitions. [2022-12-14 09:12:41,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:12:41,036 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 179 transitions. [2022-12-14 09:12:41,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 09:12:41,036 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:12:41,036 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] [2022-12-14 09:12:41,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:12:41,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:12:41,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:12:41,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1969081494, now seen corresponding path program 1 times [2022-12-14 09:12:41,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:12:41,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385155406] [2022-12-14 09:12:41,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:12:41,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:12:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:12:41,086 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 09:12:41,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:12:41,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385155406] [2022-12-14 09:12:41,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385155406] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:12:41,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:12:41,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:12:41,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237890666] [2022-12-14 09:12:41,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:12:41,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:12:41,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:12:41,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:12:41,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:12:41,090 INFO L87 Difference]: Start difference. First operand 124 states and 179 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:12:41,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:12:41,245 INFO L93 Difference]: Finished difference Result 297 states and 445 transitions. [2022-12-14 09:12:41,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:12:41,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2022-12-14 09:12:41,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:12:41,247 INFO L225 Difference]: With dead ends: 297 [2022-12-14 09:12:41,247 INFO L226 Difference]: Without dead ends: 163 [2022-12-14 09:12:41,248 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 09:12:41,249 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 67 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:12:41,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 154 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:12:41,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-12-14 09:12:41,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 160. [2022-12-14 09:12:41,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 156 states have (on average 1.4615384615384615) internal successors, (228), 159 states have internal predecessors, (228), 0 states have call successors, (0), 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 09:12:41,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 228 transitions. [2022-12-14 09:12:41,262 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 228 transitions. Word has length 25 [2022-12-14 09:12:41,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:12:41,262 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 228 transitions. [2022-12-14 09:12:41,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:12:41,263 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 228 transitions. [2022-12-14 09:12:41,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 09:12:41,263 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:12:41,264 INFO L195 NwaCegarLoop]: trace histogram [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 09:12:41,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:12:41,264 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:12:41,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:12:41,265 INFO L85 PathProgramCache]: Analyzing trace with hash 585811026, now seen corresponding path program 1 times [2022-12-14 09:12:41,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:12:41,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157163606] [2022-12-14 09:12:41,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:12:41,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:12:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:12:41,326 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:12:41,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:12:41,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157163606] [2022-12-14 09:12:41,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157163606] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:12:41,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:12:41,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:12:41,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489360329] [2022-12-14 09:12:41,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:12:41,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:12:41,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:12:41,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:12:41,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:12:41,329 INFO L87 Difference]: Start difference. First operand 160 states and 228 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 09:12:41,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:12:41,480 INFO L93 Difference]: Finished difference Result 389 states and 573 transitions. [2022-12-14 09:12:41,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:12:41,480 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 09:12:41,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:12:41,482 INFO L225 Difference]: With dead ends: 389 [2022-12-14 09:12:41,482 INFO L226 Difference]: Without dead ends: 221 [2022-12-14 09:12:41,483 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 09:12:41,484 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 114 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:12:41,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 116 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:12:41,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-12-14 09:12:41,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 208. [2022-12-14 09:12:41,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 204 states have (on average 1.446078431372549) internal successors, (295), 207 states have internal predecessors, (295), 0 states have call successors, (0), 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 09:12:41,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 295 transitions. [2022-12-14 09:12:41,501 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 295 transitions. Word has length 28 [2022-12-14 09:12:41,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:12:41,501 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 295 transitions. [2022-12-14 09:12:41,501 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 09:12:41,502 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 295 transitions. [2022-12-14 09:12:41,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-14 09:12:41,502 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:12:41,503 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 09:12:41,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:12:41,503 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:12:41,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:12:41,504 INFO L85 PathProgramCache]: Analyzing trace with hash -2041599286, now seen corresponding path program 1 times [2022-12-14 09:12:41,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:12:41,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270304368] [2022-12-14 09:12:41,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:12:41,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:12:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:12:41,606 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 09:12:41,607 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:12:41,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270304368] [2022-12-14 09:12:41,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270304368] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:12:41,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:12:41,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:12:41,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023151493] [2022-12-14 09:12:41,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:12:41,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:12:41,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:12:41,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:12:41,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:12:41,610 INFO L87 Difference]: Start difference. First operand 208 states and 295 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 09:12:41,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:12:41,751 INFO L93 Difference]: Finished difference Result 488 states and 714 transitions. [2022-12-14 09:12:41,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:12:41,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-12-14 09:12:41,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:12:41,754 INFO L225 Difference]: With dead ends: 488 [2022-12-14 09:12:41,754 INFO L226 Difference]: Without dead ends: 279 [2022-12-14 09:12:41,755 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 09:12:41,756 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 120 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:12:41,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 106 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:12:41,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-12-14 09:12:41,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 275. [2022-12-14 09:12:41,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 271 states have (on average 1.4944649446494465) internal successors, (405), 274 states have internal predecessors, (405), 0 states have call successors, (0), 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 09:12:41,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 405 transitions. [2022-12-14 09:12:41,767 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 405 transitions. Word has length 42 [2022-12-14 09:12:41,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:12:41,767 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 405 transitions. [2022-12-14 09:12:41,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 09:12:41,768 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 405 transitions. [2022-12-14 09:12:41,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 09:12:41,769 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:12:41,769 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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 09:12:41,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:12:41,769 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:12:41,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:12:41,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1907067414, now seen corresponding path program 1 times [2022-12-14 09:12:41,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:12:41,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066741595] [2022-12-14 09:12:41,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:12:41,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:12:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:12:41,815 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-14 09:12:41,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:12:41,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066741595] [2022-12-14 09:12:41,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066741595] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:12:41,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:12:41,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:12:41,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786785623] [2022-12-14 09:12:41,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:12:41,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:12:41,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:12:41,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:12:41,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:12:41,818 INFO L87 Difference]: Start difference. First operand 275 states and 405 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 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 09:12:41,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:12:41,941 INFO L93 Difference]: Finished difference Result 599 states and 890 transitions. [2022-12-14 09:12:41,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:12:41,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 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 70 [2022-12-14 09:12:41,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:12:41,943 INFO L225 Difference]: With dead ends: 599 [2022-12-14 09:12:41,944 INFO L226 Difference]: Without dead ends: 326 [2022-12-14 09:12:41,944 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 09:12:41,945 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 130 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:12:41,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 102 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:12:41,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-12-14 09:12:41,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 287. [2022-12-14 09:12:41,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 283 states have (on average 1.4840989399293287) internal successors, (420), 286 states have internal predecessors, (420), 0 states have call successors, (0), 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 09:12:41,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 420 transitions. [2022-12-14 09:12:41,960 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 420 transitions. Word has length 70 [2022-12-14 09:12:41,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:12:41,961 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 420 transitions. [2022-12-14 09:12:41,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 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 09:12:41,961 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 420 transitions. [2022-12-14 09:12:41,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 09:12:41,964 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:12:41,964 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 09:12:41,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:12:41,964 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:12:41,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:12:41,965 INFO L85 PathProgramCache]: Analyzing trace with hash -961291751, now seen corresponding path program 1 times [2022-12-14 09:12:41,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:12:41,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318970645] [2022-12-14 09:12:41,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:12:41,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:12:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:12:42,069 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 09:12:42,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:12:42,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318970645] [2022-12-14 09:12:42,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318970645] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:12:42,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:12:42,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:12:42,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142999794] [2022-12-14 09:12:42,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:12:42,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:12:42,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:12:42,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:12:42,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:12:42,072 INFO L87 Difference]: Start difference. First operand 287 states and 420 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 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 09:12:42,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:12:42,241 INFO L93 Difference]: Finished difference Result 626 states and 925 transitions. [2022-12-14 09:12:42,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:12:42,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 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 79 [2022-12-14 09:12:42,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:12:42,242 INFO L225 Difference]: With dead ends: 626 [2022-12-14 09:12:42,242 INFO L226 Difference]: Without dead ends: 341 [2022-12-14 09:12:42,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:12:42,243 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 62 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:12:42,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 243 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:12:42,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-12-14 09:12:42,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 332. [2022-12-14 09:12:42,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 328 states have (on average 1.399390243902439) internal successors, (459), 331 states have internal predecessors, (459), 0 states have call successors, (0), 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 09:12:42,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 459 transitions. [2022-12-14 09:12:42,252 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 459 transitions. Word has length 79 [2022-12-14 09:12:42,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:12:42,252 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 459 transitions. [2022-12-14 09:12:42,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 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 09:12:42,252 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 459 transitions. [2022-12-14 09:12:42,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 09:12:42,253 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:12:42,253 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 09:12:42,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:12:42,253 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:12:42,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:12:42,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1536913087, now seen corresponding path program 1 times [2022-12-14 09:12:42,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:12:42,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401247360] [2022-12-14 09:12:42,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:12:42,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:12:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:12:42,293 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-14 09:12:42,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:12:42,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401247360] [2022-12-14 09:12:42,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401247360] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:12:42,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:12:42,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:12:42,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426676233] [2022-12-14 09:12:42,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:12:42,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:12:42,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:12:42,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:12:42,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:12:42,295 INFO L87 Difference]: Start difference. First operand 332 states and 459 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:12:42,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:12:42,423 INFO L93 Difference]: Finished difference Result 671 states and 928 transitions. [2022-12-14 09:12:42,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:12:42,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-12-14 09:12:42,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:12:42,425 INFO L225 Difference]: With dead ends: 671 [2022-12-14 09:12:42,425 INFO L226 Difference]: Without dead ends: 340 [2022-12-14 09:12:42,426 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 09:12:42,427 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 125 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:12:42,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 102 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:12:42,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-12-14 09:12:42,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 335. [2022-12-14 09:12:42,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 331 states have (on average 1.392749244712991) internal successors, (461), 334 states have internal predecessors, (461), 0 states have call successors, (0), 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 09:12:42,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 461 transitions. [2022-12-14 09:12:42,441 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 461 transitions. Word has length 80 [2022-12-14 09:12:42,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:12:42,441 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 461 transitions. [2022-12-14 09:12:42,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:12:42,441 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 461 transitions. [2022-12-14 09:12:42,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-14 09:12:42,443 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:12:42,443 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:12:42,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:12:42,443 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:12:42,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:12:42,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1329185286, now seen corresponding path program 1 times [2022-12-14 09:12:42,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:12:42,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294154205] [2022-12-14 09:12:42,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:12:42,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:12:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:12:42,505 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-14 09:12:42,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:12:42,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294154205] [2022-12-14 09:12:42,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294154205] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:12:42,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:12:42,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:12:42,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277284363] [2022-12-14 09:12:42,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:12:42,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:12:42,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:12:42,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:12:42,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:12:42,508 INFO L87 Difference]: Start difference. First operand 335 states and 461 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 09:12:42,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:12:42,619 INFO L93 Difference]: Finished difference Result 701 states and 967 transitions. [2022-12-14 09:12:42,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:12:42,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 98 [2022-12-14 09:12:42,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:12:42,622 INFO L225 Difference]: With dead ends: 701 [2022-12-14 09:12:42,622 INFO L226 Difference]: Without dead ends: 368 [2022-12-14 09:12:42,622 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 09:12:42,623 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 22 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:12:42,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 212 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:12:42,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-12-14 09:12:42,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 358. [2022-12-14 09:12:42,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 354 states have (on average 1.3757062146892656) internal successors, (487), 357 states have internal predecessors, (487), 0 states have call successors, (0), 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 09:12:42,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 487 transitions. [2022-12-14 09:12:42,633 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 487 transitions. Word has length 98 [2022-12-14 09:12:42,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:12:42,633 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 487 transitions. [2022-12-14 09:12:42,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 09:12:42,633 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 487 transitions. [2022-12-14 09:12:42,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-12-14 09:12:42,634 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:12:42,634 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:12:42,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:12:42,635 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:12:42,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:12:42,635 INFO L85 PathProgramCache]: Analyzing trace with hash 542871737, now seen corresponding path program 1 times [2022-12-14 09:12:42,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:12:42,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446558237] [2022-12-14 09:12:42,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:12:42,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:12:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:12:42,683 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-12-14 09:12:42,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:12:42,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446558237] [2022-12-14 09:12:42,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446558237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:12:42,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:12:42,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:12:42,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307491832] [2022-12-14 09:12:42,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:12:42,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:12:42,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:12:42,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:12:42,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:12:42,685 INFO L87 Difference]: Start difference. First operand 358 states and 487 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:12:42,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:12:42,793 INFO L93 Difference]: Finished difference Result 746 states and 1019 transitions. [2022-12-14 09:12:42,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:12:42,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-12-14 09:12:42,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:12:42,796 INFO L225 Difference]: With dead ends: 746 [2022-12-14 09:12:42,796 INFO L226 Difference]: Without dead ends: 390 [2022-12-14 09:12:42,797 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 09:12:42,797 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 15 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:12:42,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 212 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:12:42,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-12-14 09:12:42,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 383. [2022-12-14 09:12:42,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 379 states have (on average 1.358839050131926) internal successors, (515), 382 states have internal predecessors, (515), 0 states have call successors, (0), 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 09:12:42,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 515 transitions. [2022-12-14 09:12:42,807 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 515 transitions. Word has length 122 [2022-12-14 09:12:42,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:12:42,807 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 515 transitions. [2022-12-14 09:12:42,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:12:42,807 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 515 transitions. [2022-12-14 09:12:42,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-12-14 09:12:42,808 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:12:42,808 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:12:42,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 09:12:42,809 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:12:42,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:12:42,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1288996596, now seen corresponding path program 1 times [2022-12-14 09:12:42,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:12:42,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858719469] [2022-12-14 09:12:42,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:12:42,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:12:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:12:42,861 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-12-14 09:12:42,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:12:42,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858719469] [2022-12-14 09:12:42,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858719469] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:12:42,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:12:42,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:12:42,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853809732] [2022-12-14 09:12:42,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:12:42,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:12:42,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:12:42,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:12:42,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:12:42,863 INFO L87 Difference]: Start difference. First operand 383 states and 515 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 09:12:42,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:12:42,975 INFO L93 Difference]: Finished difference Result 794 states and 1068 transitions. [2022-12-14 09:12:42,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:12:42,976 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 125 [2022-12-14 09:12:42,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:12:42,978 INFO L225 Difference]: With dead ends: 794 [2022-12-14 09:12:42,978 INFO L226 Difference]: Without dead ends: 413 [2022-12-14 09:12:42,978 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 09:12:42,979 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 32 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:12:42,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 217 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:12:42,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-12-14 09:12:42,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 402. [2022-12-14 09:12:42,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 398 states have (on average 1.349246231155779) internal successors, (537), 401 states have internal predecessors, (537), 0 states have call successors, (0), 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 09:12:42,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 537 transitions. [2022-12-14 09:12:42,993 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 537 transitions. Word has length 125 [2022-12-14 09:12:42,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:12:42,994 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 537 transitions. [2022-12-14 09:12:42,994 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 09:12:42,994 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 537 transitions. [2022-12-14 09:12:42,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-12-14 09:12:42,995 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:12:42,996 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:12:42,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 09:12:42,996 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:12:42,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:12:42,996 INFO L85 PathProgramCache]: Analyzing trace with hash -52264644, now seen corresponding path program 1 times [2022-12-14 09:12:42,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:12:42,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991707696] [2022-12-14 09:12:42,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:12:42,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:12:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:12:43,091 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 100 proven. 4 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-12-14 09:12:43,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:12:43,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991707696] [2022-12-14 09:12:43,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991707696] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:12:43,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261491144] [2022-12-14 09:12:43,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:12:43,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:12:43,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:12:43,093 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:12:43,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:12:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:12:43,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:12:43,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:12:43,259 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 100 proven. 4 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-12-14 09:12:43,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:12:43,314 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 100 proven. 4 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-12-14 09:12:43,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261491144] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:12:43,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [587919345] [2022-12-14 09:12:43,334 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2022-12-14 09:12:43,334 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:12:43,337 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:12:43,343 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:12:43,343 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:13:15,209 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:13:35,813 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10970#(and (= |ULTIMATE.start_ssl3_accept_~s__new_session~0#1| 1) (<= |ULTIMATE.start_ssl3_accept_~buf~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__reuse_message~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher~0#1| 2147483647) (= |ULTIMATE.start_ssl3_accept_~skip~0#1| 0) (not (= |ULTIMATE.start_ssl3_accept_~s__init_buf___0~0#1| 0)) (= 3 (div |ULTIMATE.start_ssl3_accept_~s__version~0#1| 256)) (<= |ULTIMATE.start_ssl3_accept_~tmp___1~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~initial_state#1| 8464) (= 12292 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (<= |ULTIMATE.start_ssl3_accept_~s__verify_mode~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algo_strength~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~ret~0#1| 1)) (<= |ULTIMATE.start_ssl3_accept_~s__info_callback~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__cert~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__session__peer~0#1| 2147483647) (<= 0 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__ctx__info_callback~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~cb~0#1| 2147483648)) (= |ULTIMATE.start_ssl3_accept_~s__init_num~0#1| 0) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__reuse_message~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_#in~initial_state#1| 8464) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|)) (not (= |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 0)) (<= |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 2147483647) (not (<= 0 (+ 2147483649 |ULTIMATE.start_ssl3_accept_~s__ctx__stats__sess_accept_renegotiate~0#1|))) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483647) (= |ULTIMATE.start_ssl3_accept_~s__server~0#1| 1) (<= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__cert~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__info_callback~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 2147483648)) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__verify_mode~0#1|)) (<= 0 |ULTIMATE.start_ssl3_accept_~got_new_session~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__debug~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__cert__pkeys__AT0__privatekey~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___1~0#1| 2147483648)) (= 8464 |ULTIMATE.start_main_~s~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__session__peer~0#1| 2147483648)) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algo_strength~0#1|)) (= |ULTIMATE.start_ssl3_accept_~state~0#1| |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (<= 8464 |ULTIMATE.start_ssl3_accept_~initial_state#1|) (<= |ULTIMATE.start_ssl3_accept_~s__options~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__debug~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__options~0#1| 2147483648)) (= 8192 |ULTIMATE.start_ssl3_accept_~s__type~0#1|) (<= |ULTIMATE.start_ssl3_accept_~tmp___8~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~tmp___2~0#1| 2147483647) (= |#NULL.offset| 0) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___8~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__cert__pkeys__AT0__privatekey~0#1| 2147483647) (<= 8464 |ULTIMATE.start_ssl3_accept_#in~initial_state#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~buf~0#1| 2147483648)) (<= 0 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___2~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~cb~0#1| 2147483647) (= |#NULL.base| 0) (<= |ULTIMATE.start_ssl3_accept_~s__ctx__info_callback~0#1| 2147483647))' at error location [2022-12-14 09:13:35,814 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:13:35,814 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:13:35,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-12-14 09:13:35,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040070251] [2022-12-14 09:13:35,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:13:35,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:13:35,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:13:35,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:13:35,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=515, Invalid=2455, Unknown=0, NotChecked=0, Total=2970 [2022-12-14 09:13:35,816 INFO L87 Difference]: Start difference. First operand 402 states and 537 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 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 09:13:36,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:13:36,389 INFO L93 Difference]: Finished difference Result 1695 states and 2294 transitions. [2022-12-14 09:13:36,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:13:36,390 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 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 138 [2022-12-14 09:13:36,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:13:36,396 INFO L225 Difference]: With dead ends: 1695 [2022-12-14 09:13:36,396 INFO L226 Difference]: Without dead ends: 1260 [2022-12-14 09:13:36,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 362 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1397 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=540, Invalid=2882, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 09:13:36,398 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 633 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:13:36,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 430 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 09:13:36,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2022-12-14 09:13:36,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1096. [2022-12-14 09:13:36,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1092 states have (on average 1.38003663003663) internal successors, (1507), 1095 states have internal predecessors, (1507), 0 states have call successors, (0), 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 09:13:36,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1507 transitions. [2022-12-14 09:13:36,421 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1507 transitions. Word has length 138 [2022-12-14 09:13:36,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:13:36,421 INFO L495 AbstractCegarLoop]: Abstraction has 1096 states and 1507 transitions. [2022-12-14 09:13:36,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 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 09:13:36,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1507 transitions. [2022-12-14 09:13:36,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-12-14 09:13:36,422 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:13:36,422 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:13:36,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:13:36,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:13:36,623 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:13:36,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:13:36,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1895496212, now seen corresponding path program 1 times [2022-12-14 09:13:36,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:13:36,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090027054] [2022-12-14 09:13:36,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:36,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:13:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:36,692 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 110 proven. 6 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-12-14 09:13:36,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:13:36,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090027054] [2022-12-14 09:13:36,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090027054] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:13:36,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356413881] [2022-12-14 09:13:36,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:36,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:13:36,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:13:36,694 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:13:36,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:13:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:36,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:13:36,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:13:36,811 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 110 proven. 6 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-12-14 09:13:36,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:13:36,847 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 110 proven. 6 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-12-14 09:13:36,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356413881] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:13:36,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [928490792] [2022-12-14 09:13:36,850 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2022-12-14 09:13:36,851 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:13:36,851 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:13:36,851 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:13:36,851 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:14:06,880 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:14:27,441 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15171#(and (<= |ULTIMATE.start_ssl3_accept_~buf~0#1| 2147483647) (not (<= 0 (+ 2147483649 |ULTIMATE.start_ssl3_accept_~s__ctx__stats__sess_accept~0#1|))) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__reuse_message~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher~0#1| 2147483647) (= |ULTIMATE.start_ssl3_accept_~skip~0#1| 0) (not (= |ULTIMATE.start_ssl3_accept_~s__init_buf___0~0#1| 0)) (= 3 (div |ULTIMATE.start_ssl3_accept_~s__version~0#1| 256)) (<= |ULTIMATE.start_ssl3_accept_~tmp___1~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~initial_state#1| 8464) (<= |ULTIMATE.start_ssl3_accept_~s__verify_mode~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algo_strength~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~ret~0#1| 1)) (<= |ULTIMATE.start_ssl3_accept_~s__info_callback~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__cert~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___5~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__session__peer~0#1| 2147483647) (<= 0 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__ctx__info_callback~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~cb~0#1| 2147483648)) (= |ULTIMATE.start_ssl3_accept_~s__init_num~0#1| 0) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__reuse_message~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_#in~initial_state#1| 8464) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|)) (not (= |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 0)) (<= |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483647) (= |ULTIMATE.start_ssl3_accept_~s__server~0#1| 1) (<= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__cert~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__info_callback~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 2147483648)) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__verify_mode~0#1|)) (<= 0 |ULTIMATE.start_ssl3_accept_~got_new_session~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__debug~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__cert__pkeys__AT0__privatekey~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___1~0#1| 2147483648)) (= 8464 |ULTIMATE.start_main_~s~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__session__peer~0#1| 2147483648)) (= 8464 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algo_strength~0#1|)) (<= 8464 |ULTIMATE.start_ssl3_accept_~initial_state#1|) (<= |ULTIMATE.start_ssl3_accept_~s__options~0#1| 2147483647) (not (= |ULTIMATE.start_ssl3_accept_~tmp___5~0#1| 0)) (<= |ULTIMATE.start_ssl3_accept_~s__debug~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__options~0#1| 2147483648)) (= 8192 |ULTIMATE.start_ssl3_accept_~s__type~0#1|) (<= |ULTIMATE.start_ssl3_accept_~tmp___8~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~tmp___2~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~tmp___5~0#1| 2147483647) (= |#NULL.offset| 0) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___8~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__cert__pkeys__AT0__privatekey~0#1| 2147483647) (<= 8464 |ULTIMATE.start_ssl3_accept_#in~initial_state#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~buf~0#1| 2147483648)) (<= 0 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___2~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~cb~0#1| 2147483647) (= |#NULL.base| 0) (<= |ULTIMATE.start_ssl3_accept_~s__ctx__info_callback~0#1| 2147483647))' at error location [2022-12-14 09:14:27,442 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:14:27,442 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:14:27,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-12-14 09:14:27,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985781792] [2022-12-14 09:14:27,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:14:27,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:14:27,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:27,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:14:27,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=514, Invalid=2678, Unknown=0, NotChecked=0, Total=3192 [2022-12-14 09:14:27,445 INFO L87 Difference]: Start difference. First operand 1096 states and 1507 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 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 09:14:28,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:28,034 INFO L93 Difference]: Finished difference Result 2803 states and 3796 transitions. [2022-12-14 09:14:28,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 09:14:28,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 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 141 [2022-12-14 09:14:28,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:28,040 INFO L225 Difference]: With dead ends: 2803 [2022-12-14 09:14:28,040 INFO L226 Difference]: Without dead ends: 1709 [2022-12-14 09:14:28,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 368 SyntacticMatches, 6 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1631 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=539, Invalid=3121, Unknown=0, NotChecked=0, Total=3660 [2022-12-14 09:14:28,043 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 499 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:28,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 695 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 09:14:28,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2022-12-14 09:14:28,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1429. [2022-12-14 09:14:28,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1429 states, 1425 states have (on average 1.3396491228070175) internal successors, (1909), 1428 states have internal predecessors, (1909), 0 states have call successors, (0), 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 09:14:28,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 1909 transitions. [2022-12-14 09:14:28,099 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 1909 transitions. Word has length 141 [2022-12-14 09:14:28,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:28,099 INFO L495 AbstractCegarLoop]: Abstraction has 1429 states and 1909 transitions. [2022-12-14 09:14:28,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 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 09:14:28,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 1909 transitions. [2022-12-14 09:14:28,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-12-14 09:14:28,101 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:28,101 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 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] [2022-12-14 09:14:28,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 09:14:28,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 09:14:28,302 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:14:28,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:28,302 INFO L85 PathProgramCache]: Analyzing trace with hash 652367669, now seen corresponding path program 1 times [2022-12-14 09:14:28,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:28,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827301507] [2022-12-14 09:14:28,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:28,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:28,444 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 102 proven. 68 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 09:14:28,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:28,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827301507] [2022-12-14 09:14:28,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827301507] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:14:28,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013641339] [2022-12-14 09:14:28,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:28,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:28,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:14:28,445 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:14:28,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:14:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:28,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 09:14:28,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:14:28,699 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 85 proven. 85 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 09:14:28,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:14:28,739 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 97 proven. 6 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-12-14 09:14:28,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013641339] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:14:28,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1448172852] [2022-12-14 09:14:28,741 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 09:14:28,742 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:14:28,742 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:14:28,742 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:14:28,742 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:14:43,526 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:15:06,564 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21135#(and (<= |ULTIMATE.start_ssl3_accept_~buf~0#1| 2147483647) (not (<= 0 (+ 2147483649 |ULTIMATE.start_ssl3_accept_~s__ctx__stats__sess_accept~0#1|))) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__reuse_message~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher~0#1| 2147483647) (= |ULTIMATE.start_ssl3_accept_~skip~0#1| 0) (not (= |ULTIMATE.start_ssl3_accept_~s__init_buf___0~0#1| 0)) (= 3 (div |ULTIMATE.start_ssl3_accept_~s__version~0#1| 256)) (<= |ULTIMATE.start_ssl3_accept_~tmp___1~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~initial_state#1| 8464) (<= |ULTIMATE.start_ssl3_accept_~s__verify_mode~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algo_strength~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~ret~0#1| 1)) (<= |ULTIMATE.start_ssl3_accept_~s__info_callback~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__cert~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___5~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__session__peer~0#1| 2147483647) (<= 0 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__ctx__info_callback~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~cb~0#1| 2147483648)) (= |ULTIMATE.start_ssl3_accept_~s__init_num~0#1| 0) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__reuse_message~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_#in~initial_state#1| 8464) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|)) (not (= |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 0)) (<= |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483647) (= |ULTIMATE.start_ssl3_accept_~s__server~0#1| 1) (<= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__cert~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__info_callback~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 2147483648)) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__verify_mode~0#1|)) (<= 0 |ULTIMATE.start_ssl3_accept_~got_new_session~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__debug~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__cert__pkeys__AT0__privatekey~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___1~0#1| 2147483648)) (= 8464 |ULTIMATE.start_main_~s~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__session__peer~0#1| 2147483648)) (= 8464 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algo_strength~0#1|)) (<= 8464 |ULTIMATE.start_ssl3_accept_~initial_state#1|) (<= |ULTIMATE.start_ssl3_accept_~s__options~0#1| 2147483647) (not (= |ULTIMATE.start_ssl3_accept_~tmp___5~0#1| 0)) (<= |ULTIMATE.start_ssl3_accept_~s__debug~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__options~0#1| 2147483648)) (= 8192 |ULTIMATE.start_ssl3_accept_~s__type~0#1|) (<= |ULTIMATE.start_ssl3_accept_~tmp___8~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~tmp___2~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~tmp___5~0#1| 2147483647) (= |#NULL.offset| 0) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___8~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__cert__pkeys__AT0__privatekey~0#1| 2147483647) (<= 8464 |ULTIMATE.start_ssl3_accept_#in~initial_state#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~buf~0#1| 2147483648)) (<= 0 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___2~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~cb~0#1| 2147483647) (= |#NULL.base| 0) (<= |ULTIMATE.start_ssl3_accept_~s__ctx__info_callback~0#1| 2147483647))' at error location [2022-12-14 09:15:06,564 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:15:06,564 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:15:06,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 4] total 9 [2022-12-14 09:15:06,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490732714] [2022-12-14 09:15:06,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:15:06,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 09:15:06,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:15:06,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 09:15:06,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=617, Invalid=3415, Unknown=0, NotChecked=0, Total=4032 [2022-12-14 09:15:06,567 INFO L87 Difference]: Start difference. First operand 1429 states and 1909 transitions. Second operand has 9 states, 9 states have (on average 23.11111111111111) internal successors, (208), 9 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:15:07,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:15:07,605 INFO L93 Difference]: Finished difference Result 4429 states and 5829 transitions. [2022-12-14 09:15:07,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-14 09:15:07,605 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 23.11111111111111) internal successors, (208), 9 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150 [2022-12-14 09:15:07,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:15:07,610 INFO L225 Difference]: With dead ends: 4429 [2022-12-14 09:15:07,610 INFO L226 Difference]: Without dead ends: 3002 [2022-12-14 09:15:07,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 391 SyntacticMatches, 11 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2691 ImplicationChecksByTransitivity, 23.3s TimeCoverageRelationStatistics Valid=744, Invalid=5108, Unknown=0, NotChecked=0, Total=5852 [2022-12-14 09:15:07,613 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 869 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 1842 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 1954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:15:07,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 1200 Invalid, 1954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1842 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 09:15:07,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3002 states. [2022-12-14 09:15:07,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3002 to 2568. [2022-12-14 09:15:07,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2568 states, 2564 states have (on average 1.3053822152886116) internal successors, (3347), 2567 states have internal predecessors, (3347), 0 states have call successors, (0), 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 09:15:07,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2568 states to 2568 states and 3347 transitions. [2022-12-14 09:15:07,692 INFO L78 Accepts]: Start accepts. Automaton has 2568 states and 3347 transitions. Word has length 150 [2022-12-14 09:15:07,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:15:07,692 INFO L495 AbstractCegarLoop]: Abstraction has 2568 states and 3347 transitions. [2022-12-14 09:15:07,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 23.11111111111111) internal successors, (208), 9 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:15:07,692 INFO L276 IsEmpty]: Start isEmpty. Operand 2568 states and 3347 transitions. [2022-12-14 09:15:07,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-12-14 09:15:07,693 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:15:07,693 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:15:07,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 09:15:07,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 09:15:07,894 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:15:07,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:15:07,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1041351786, now seen corresponding path program 1 times [2022-12-14 09:15:07,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:15:07,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994582671] [2022-12-14 09:15:07,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:15:07,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:15:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:15:07,958 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-12-14 09:15:07,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:15:07,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994582671] [2022-12-14 09:15:07,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994582671] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:15:07,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:15:07,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:15:07,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881267621] [2022-12-14 09:15:07,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:15:07,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:15:07,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:15:07,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:15:07,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:15:07,959 INFO L87 Difference]: Start difference. First operand 2568 states and 3347 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 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 09:15:08,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:15:08,121 INFO L93 Difference]: Finished difference Result 4896 states and 6355 transitions. [2022-12-14 09:15:08,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:15:08,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2022-12-14 09:15:08,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:15:08,133 INFO L225 Difference]: With dead ends: 4896 [2022-12-14 09:15:08,133 INFO L226 Difference]: Without dead ends: 2330 [2022-12-14 09:15:08,136 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 09:15:08,137 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 8 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:15:08,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 201 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:15:08,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2330 states. [2022-12-14 09:15:08,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2330 to 1667. [2022-12-14 09:15:08,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1665 states have (on average 1.288888888888889) internal successors, (2146), 1666 states have internal predecessors, (2146), 0 states have call successors, (0), 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 09:15:08,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2146 transitions. [2022-12-14 09:15:08,222 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2146 transitions. Word has length 152 [2022-12-14 09:15:08,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:15:08,223 INFO L495 AbstractCegarLoop]: Abstraction has 1667 states and 2146 transitions. [2022-12-14 09:15:08,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 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 09:15:08,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2146 transitions. [2022-12-14 09:15:08,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-12-14 09:15:08,224 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:15:08,224 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 6, 6, 6, 5, 5, 4, 4, 3, 3, 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 09:15:08,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 09:15:08,225 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:15:08,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:15:08,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1160517785, now seen corresponding path program 1 times [2022-12-14 09:15:08,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:15:08,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721954856] [2022-12-14 09:15:08,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:15:08,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:15:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:15:08,274 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-12-14 09:15:08,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:15:08,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721954856] [2022-12-14 09:15:08,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721954856] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:15:08,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:15:08,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:15:08,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934590701] [2022-12-14 09:15:08,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:15:08,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:15:08,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:15:08,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:15:08,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:15:08,275 INFO L87 Difference]: Start difference. First operand 1667 states and 2146 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 09:15:08,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:15:08,405 INFO L93 Difference]: Finished difference Result 3332 states and 4290 transitions. [2022-12-14 09:15:08,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:15:08,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 183 [2022-12-14 09:15:08,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:15:08,408 INFO L225 Difference]: With dead ends: 3332 [2022-12-14 09:15:08,408 INFO L226 Difference]: Without dead ends: 1667 [2022-12-14 09:15:08,409 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 09:15:08,410 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 41 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:15:08,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 176 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:15:08,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2022-12-14 09:15:08,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1661. [2022-12-14 09:15:08,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1659 states have (on average 1.2754671488848703) internal successors, (2116), 1660 states have internal predecessors, (2116), 0 states have call successors, (0), 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 09:15:08,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2116 transitions. [2022-12-14 09:15:08,460 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2116 transitions. Word has length 183 [2022-12-14 09:15:08,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:15:08,460 INFO L495 AbstractCegarLoop]: Abstraction has 1661 states and 2116 transitions. [2022-12-14 09:15:08,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 09:15:08,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2116 transitions. [2022-12-14 09:15:08,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-12-14 09:15:08,461 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:15:08,461 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:15:08,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 09:15:08,462 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:15:08,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:15:08,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1622406133, now seen corresponding path program 1 times [2022-12-14 09:15:08,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:15:08,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657126978] [2022-12-14 09:15:08,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:15:08,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:15:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:15:08,568 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 165 proven. 32 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-12-14 09:15:08,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:15:08,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657126978] [2022-12-14 09:15:08,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657126978] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:15:08,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612350815] [2022-12-14 09:15:08,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:15:08,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:15:08,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:15:08,569 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:15:08,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:15:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:15:08,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 09:15:08,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:15:08,840 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 114 proven. 83 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-12-14 09:15:08,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:15:08,993 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 165 proven. 32 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-12-14 09:15:08,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612350815] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:15:08,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1660613026] [2022-12-14 09:15:08,997 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-12-14 09:15:08,997 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:15:08,997 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:15:08,997 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:15:08,997 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:15:34,507 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:15:53,354 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '44265#(and (<= |ULTIMATE.start_ssl3_accept_~buf~0#1| 2147483647) (not (<= 0 (+ 2147483649 |ULTIMATE.start_ssl3_accept_~s__ctx__stats__sess_accept~0#1|))) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__reuse_message~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher~0#1| 2147483647) (= |ULTIMATE.start_ssl3_accept_~skip~0#1| 0) (not (= |ULTIMATE.start_ssl3_accept_~s__init_buf___0~0#1| 0)) (= 3 (div |ULTIMATE.start_ssl3_accept_~s__version~0#1| 256)) (<= |ULTIMATE.start_ssl3_accept_~tmp___1~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~initial_state#1| 8464) (<= |ULTIMATE.start_ssl3_accept_~s__verify_mode~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algo_strength~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~ret~0#1| 1)) (<= |ULTIMATE.start_ssl3_accept_~s__info_callback~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__cert~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___5~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__session__peer~0#1| 2147483647) (<= 0 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__ctx__info_callback~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~cb~0#1| 2147483648)) (= |ULTIMATE.start_ssl3_accept_~s__init_num~0#1| 0) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__reuse_message~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_#in~initial_state#1| 8464) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|)) (not (= |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 0)) (<= |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483647) (= |ULTIMATE.start_ssl3_accept_~s__server~0#1| 1) (<= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__cert~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__info_callback~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 2147483648)) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__verify_mode~0#1|)) (<= 0 |ULTIMATE.start_ssl3_accept_~got_new_session~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__debug~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__cert__pkeys__AT0__privatekey~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___1~0#1| 2147483648)) (= 8464 |ULTIMATE.start_main_~s~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__session__peer~0#1| 2147483648)) (= 8464 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algo_strength~0#1|)) (<= 8464 |ULTIMATE.start_ssl3_accept_~initial_state#1|) (<= |ULTIMATE.start_ssl3_accept_~s__options~0#1| 2147483647) (not (= |ULTIMATE.start_ssl3_accept_~tmp___5~0#1| 0)) (<= |ULTIMATE.start_ssl3_accept_~s__debug~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__options~0#1| 2147483648)) (= 8192 |ULTIMATE.start_ssl3_accept_~s__type~0#1|) (<= |ULTIMATE.start_ssl3_accept_~tmp___8~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~tmp___2~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~tmp___5~0#1| 2147483647) (= |#NULL.offset| 0) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___8~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__cert__pkeys__AT0__privatekey~0#1| 2147483647) (<= 8464 |ULTIMATE.start_ssl3_accept_#in~initial_state#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~buf~0#1| 2147483648)) (<= 0 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___2~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~cb~0#1| 2147483647) (= |#NULL.base| 0) (<= |ULTIMATE.start_ssl3_accept_~s__ctx__info_callback~0#1| 2147483647))' at error location [2022-12-14 09:15:53,354 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:15:53,354 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:15:53,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2022-12-14 09:15:53,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454796555] [2022-12-14 09:15:53,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:15:53,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 09:15:53,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:15:53,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 09:15:53,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=632, Invalid=3400, Unknown=0, NotChecked=0, Total=4032 [2022-12-14 09:15:53,356 INFO L87 Difference]: Start difference. First operand 1661 states and 2116 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 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 09:15:53,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:15:53,670 INFO L93 Difference]: Finished difference Result 2737 states and 3478 transitions. [2022-12-14 09:15:53,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:15:53,670 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 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 186 [2022-12-14 09:15:53,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:15:53,672 INFO L225 Difference]: With dead ends: 2737 [2022-12-14 09:15:53,672 INFO L226 Difference]: Without dead ends: 815 [2022-12-14 09:15:53,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 492 SyntacticMatches, 8 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1739 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=644, Invalid=3646, Unknown=0, NotChecked=0, Total=4290 [2022-12-14 09:15:53,675 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 219 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:15:53,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 476 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:15:53,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2022-12-14 09:15:53,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 809. [2022-12-14 09:15:53,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 807 states have (on average 1.2812887236679058) internal successors, (1034), 808 states have internal predecessors, (1034), 0 states have call successors, (0), 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 09:15:53,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1034 transitions. [2022-12-14 09:15:53,696 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1034 transitions. Word has length 186 [2022-12-14 09:15:53,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:15:53,696 INFO L495 AbstractCegarLoop]: Abstraction has 809 states and 1034 transitions. [2022-12-14 09:15:53,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 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 09:15:53,696 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1034 transitions. [2022-12-14 09:15:53,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-12-14 09:15:53,698 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:15:53,698 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:15:53,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 09:15:53,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:15:53,900 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:15:53,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:15:53,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1088099945, now seen corresponding path program 1 times [2022-12-14 09:15:53,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:15:53,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794885369] [2022-12-14 09:15:53,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:15:53,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:15:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:15:53,975 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-12-14 09:15:53,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:15:53,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794885369] [2022-12-14 09:15:53,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794885369] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:15:53,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:15:53,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:15:53,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251113639] [2022-12-14 09:15:53,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:15:53,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:15:53,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:15:53,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:15:53,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:15:53,977 INFO L87 Difference]: Start difference. First operand 809 states and 1034 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 09:15:54,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:15:54,079 INFO L93 Difference]: Finished difference Result 1718 states and 2186 transitions. [2022-12-14 09:15:54,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:15:54,079 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 207 [2022-12-14 09:15:54,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:15:54,081 INFO L225 Difference]: With dead ends: 1718 [2022-12-14 09:15:54,081 INFO L226 Difference]: Without dead ends: 911 [2022-12-14 09:15:54,082 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 09:15:54,082 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 8 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:15:54,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 199 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:15:54,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2022-12-14 09:15:54,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 905. [2022-12-14 09:15:54,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 903 states have (on average 1.2613510520487266) internal successors, (1139), 904 states have internal predecessors, (1139), 0 states have call successors, (0), 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 09:15:54,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1139 transitions. [2022-12-14 09:15:54,103 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1139 transitions. Word has length 207 [2022-12-14 09:15:54,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:15:54,103 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1139 transitions. [2022-12-14 09:15:54,103 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 09:15:54,103 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1139 transitions. [2022-12-14 09:15:54,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-12-14 09:15:54,105 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:15:54,105 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:15:54,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 09:15:54,105 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:15:54,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:15:54,106 INFO L85 PathProgramCache]: Analyzing trace with hash 2122983586, now seen corresponding path program 1 times [2022-12-14 09:15:54,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:15:54,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325659411] [2022-12-14 09:15:54,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:15:54,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:15:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:15:54,150 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 231 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2022-12-14 09:15:54,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:15:54,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325659411] [2022-12-14 09:15:54,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325659411] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:15:54,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:15:54,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:15:54,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243653282] [2022-12-14 09:15:54,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:15:54,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:15:54,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:15:54,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:15:54,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:15:54,151 INFO L87 Difference]: Start difference. First operand 905 states and 1139 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:15:54,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:15:54,242 INFO L93 Difference]: Finished difference Result 1829 states and 2312 transitions. [2022-12-14 09:15:54,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:15:54,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 237 [2022-12-14 09:15:54,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:15:54,244 INFO L225 Difference]: With dead ends: 1829 [2022-12-14 09:15:54,244 INFO L226 Difference]: Without dead ends: 926 [2022-12-14 09:15:54,245 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 09:15:54,245 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 8 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:15:54,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 199 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:15:54,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2022-12-14 09:15:54,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 920. [2022-12-14 09:15:54,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 918 states have (on average 1.2570806100217864) internal successors, (1154), 919 states have internal predecessors, (1154), 0 states have call successors, (0), 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 09:15:54,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1154 transitions. [2022-12-14 09:15:54,265 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1154 transitions. Word has length 237 [2022-12-14 09:15:54,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:15:54,266 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1154 transitions. [2022-12-14 09:15:54,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:15:54,266 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1154 transitions. [2022-12-14 09:15:54,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-12-14 09:15:54,267 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:15:54,267 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:15:54,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 09:15:54,267 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:15:54,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:15:54,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1902162258, now seen corresponding path program 1 times [2022-12-14 09:15:54,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:15:54,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892735041] [2022-12-14 09:15:54,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:15:54,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:15:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:15:54,401 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 341 proven. 56 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2022-12-14 09:15:54,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:15:54,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892735041] [2022-12-14 09:15:54,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892735041] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:15:54,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431839806] [2022-12-14 09:15:54,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:15:54,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:15:54,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:15:54,402 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:15:54,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 09:15:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:15:54,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:15:54,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:15:54,531 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 812 trivial. 0 not checked. [2022-12-14 09:15:54,531 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:15:54,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431839806] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:15:54,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 09:15:54,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-12-14 09:15:54,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529597151] [2022-12-14 09:15:54,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:15:54,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:15:54,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:15:54,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:15:54,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:15:54,532 INFO L87 Difference]: Start difference. First operand 920 states and 1154 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 09:15:54,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:15:54,650 INFO L93 Difference]: Finished difference Result 1841 states and 2309 transitions. [2022-12-14 09:15:54,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:15:54,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 269 [2022-12-14 09:15:54,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:15:54,652 INFO L225 Difference]: With dead ends: 1841 [2022-12-14 09:15:54,652 INFO L226 Difference]: Without dead ends: 923 [2022-12-14 09:15:54,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:15:54,653 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 35 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:15:54,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 199 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:15:54,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2022-12-14 09:15:54,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 628. [2022-12-14 09:15:54,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 626 states have (on average 1.218849840255591) internal successors, (763), 627 states have internal predecessors, (763), 0 states have call successors, (0), 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 09:15:54,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 763 transitions. [2022-12-14 09:15:54,670 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 763 transitions. Word has length 269 [2022-12-14 09:15:54,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:15:54,670 INFO L495 AbstractCegarLoop]: Abstraction has 628 states and 763 transitions. [2022-12-14 09:15:54,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 09:15:54,670 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 763 transitions. [2022-12-14 09:15:54,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-12-14 09:15:54,671 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:15:54,671 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:15:54,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 09:15:54,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:15:54,873 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 09:15:54,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:15:54,874 INFO L85 PathProgramCache]: Analyzing trace with hash 66730923, now seen corresponding path program 1 times [2022-12-14 09:15:54,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:15:54,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630854254] [2022-12-14 09:15:54,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:15:54,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:15:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:15:55,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 442 proven. 322 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2022-12-14 09:15:55,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:15:55,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630854254] [2022-12-14 09:15:55,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630854254] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:15:55,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087388822] [2022-12-14 09:15:55,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:15:55,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:15:55,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:15:55,191 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:15:55,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb97968-1582-48da-b47e-db4d2c81c1ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 09:15:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:15:55,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 09:15:55,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:15:55,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 407 proven. 40 refuted. 0 times theorem prover too weak. 1206 trivial. 0 not checked. [2022-12-14 09:15:55,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:15:55,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 353 proven. 8 refuted. 0 times theorem prover too weak. 1292 trivial. 0 not checked. [2022-12-14 09:15:55,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087388822] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:15:55,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1846514399] [2022-12-14 09:15:55,454 INFO L159 IcfgInterpreter]: Started Sifa with 83 locations of interest [2022-12-14 09:15:55,454 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:15:55,455 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:15:55,455 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:15:55,455 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs